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80e08ad23e
The existing code would unnecessarily break LDRD/STRD apart with non-adjacent registers, on thumb2 this is not necessary. Ideally on thumb2 we shouldn't match for ldrd/strd pre-regalloc anymore as there is not reason to set register hints anymore, changing that is something for a future patch however. Differential Revision: http://reviews.llvm.org/D9694 Recommiting after the revert in r238821, the buildbot still failed with the patch removed so there seems to be another reason for the breakage. llvm-svn: 238935
1424 lines
45 KiB
LLVM
1424 lines
45 KiB
LLVM
; RUN: llc -mtriple=armv8-none-linux-gnu -verify-machineinstrs < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-LE --check-prefix=CHECK-ARM --check-prefix=CHECK-ARM-LE
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; RUN: llc -mtriple=armebv8-none-linux-gnu -verify-machineinstrs < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-BE --check-prefix=CHECK-ARM --check-prefix=CHECK-ARM-BE
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; RUN: llc -mtriple=thumbv8-none-linux-gnu -verify-machineinstrs < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-LE --check-prefix=CHECK-THUMB --check-prefix=CHECK-THUMB-LE
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; RUN: llc -mtriple=thumbebv8-none-linux-gnu -verify-machineinstrs < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-BE --check-prefix=CHECK-THUMB --check-prefix=CHECK-THUMB-BE
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@var8 = global i8 0
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@var16 = global i16 0
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@var32 = global i32 0
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@var64 = global i64 0
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define i8 @test_atomic_load_add_i8(i8 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_add_i8:
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%old = atomicrmw add i8* @var8, i8 %offset seq_cst
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
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; CHECK: movt r[[ADDR]], :upper16:var8
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldaexb r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: add{{s?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: stlexb [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i8 %old
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}
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define i16 @test_atomic_load_add_i16(i16 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_add_i16:
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%old = atomicrmw add i16* @var16, i16 %offset acquire
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
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; CHECK: movt r[[ADDR]], :upper16:var16
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldaexh r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: add{{s?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: strexh [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i16 %old
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}
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define i32 @test_atomic_load_add_i32(i32 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_add_i32:
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%old = atomicrmw add i32* @var32, i32 %offset release
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
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; CHECK: movt r[[ADDR]], :upper16:var32
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldrex r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: add{{s?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: stlex [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i32 %old
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}
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define void @test_atomic_load_add_i64(i64 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_add_i64:
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%old = atomicrmw add i64* @var64, i64 %offset monotonic
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
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; CHECK: movt r[[ADDR]], :upper16:var64
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldrexd r[[OLD1:[0-9]+]], r[[OLD2:[0-9]+]], [r[[ADDR]]]
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; r0, r1 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-LE-NEXT: adds{{(\.w)?}} [[NEW1:r[0-9]+|lr]], r[[OLD1]], r0
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; CHECK-LE-NEXT: adc{{(\.w)?}} [[NEW2:r[0-9]+]], r[[OLD2]], r1
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; CHECK-BE-NEXT: adds{{(\.w)?}} [[NEW2:r[0-9]+|lr]], r[[OLD2]], r1
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; CHECK-BE-NEXT: adc{{(\.w)?}} [[NEW1:r[0-9]+]], r[[OLD1]], r0
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; CHECK-NEXT: strexd [[STATUS:r[0-9]+]], [[NEW1]], [[NEW2]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: strd r[[OLD1]], r[[OLD2]], [r[[ADDR]]]
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store i64 %old, i64* @var64
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ret void
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}
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define i8 @test_atomic_load_sub_i8(i8 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_sub_i8:
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%old = atomicrmw sub i8* @var8, i8 %offset monotonic
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
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; CHECK: movt r[[ADDR]], :upper16:var8
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldrexb r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: sub{{s?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: strexb [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i8 %old
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}
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define i16 @test_atomic_load_sub_i16(i16 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_sub_i16:
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%old = atomicrmw sub i16* @var16, i16 %offset release
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
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; CHECK: movt r[[ADDR]], :upper16:var16
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldrexh r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: sub{{s?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: stlexh [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i16 %old
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}
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define i32 @test_atomic_load_sub_i32(i32 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_sub_i32:
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%old = atomicrmw sub i32* @var32, i32 %offset acquire
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
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; CHECK: movt r[[ADDR]], :upper16:var32
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldaex r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: sub{{s?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: strex [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i32 %old
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}
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define void @test_atomic_load_sub_i64(i64 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_sub_i64:
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%old = atomicrmw sub i64* @var64, i64 %offset seq_cst
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
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; CHECK: movt r[[ADDR]], :upper16:var64
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldaexd r[[OLD1:[0-9]+]], r[[OLD2:[0-9]+]], [r[[ADDR]]]
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; r0, r1 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-LE-NEXT: subs{{(\.w)?}} [[NEW1:r[0-9]+|lr]], r[[OLD1]], r0
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; CHECK-LE-NEXT: sbc{{(\.w)?}} [[NEW2:r[0-9]+]], r[[OLD2]], r1
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; CHECK-BE-NEXT: subs{{(\.w)?}} [[NEW2:r[0-9]+|lr]], r[[OLD2]], r1
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; CHECK-BE-NEXT: sbc{{(\.w)?}} [[NEW1:r[0-9]+]], r[[OLD1]], r0
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; CHECK-NEXT: stlexd [[STATUS:r[0-9]+]], [[NEW1]], [[NEW2]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: strd r[[OLD1]], r[[OLD2]], [r[[ADDR]]]
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store i64 %old, i64* @var64
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ret void
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}
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define i8 @test_atomic_load_and_i8(i8 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_and_i8:
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%old = atomicrmw and i8* @var8, i8 %offset release
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
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; CHECK: movt r[[ADDR]], :upper16:var8
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldrexb r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: and{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: stlexb [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i8 %old
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}
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define i16 @test_atomic_load_and_i16(i16 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_and_i16:
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%old = atomicrmw and i16* @var16, i16 %offset monotonic
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
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; CHECK: movt r[[ADDR]], :upper16:var16
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldrexh r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: and{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: strexh [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i16 %old
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}
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define i32 @test_atomic_load_and_i32(i32 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_and_i32:
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%old = atomicrmw and i32* @var32, i32 %offset seq_cst
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
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; CHECK: movt r[[ADDR]], :upper16:var32
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldaex r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: and{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: stlex [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i32 %old
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}
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define void @test_atomic_load_and_i64(i64 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_and_i64:
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%old = atomicrmw and i64* @var64, i64 %offset acquire
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
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; CHECK: movt r[[ADDR]], :upper16:var64
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldaexd r[[OLD1:[0-9]+]], r[[OLD2:[0-9]+]], [r[[ADDR]]]
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; r0, r1 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-LE-DAG: and{{(\.w)?}} [[NEW1:r[0-9]+|lr]], r[[OLD1]], r0
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; CHECK-LE-DAG: and{{(\.w)?}} [[NEW2:r[0-9]+|lr]], r[[OLD2]], r1
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; CHECK-BE-DAG: and{{(\.w)?}} [[NEW2:r[0-9]+|lr]], r[[OLD2]], r1
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; CHECK-BE-DAG: and{{(\.w)?}} [[NEW1:r[0-9]+|lr]], r[[OLD1]], r0
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; CHECK: strexd [[STATUS:r[0-9]+]], [[NEW1]], [[NEW2]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: strd r[[OLD1]], r[[OLD2]], [r[[ADDR]]]
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store i64 %old, i64* @var64
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ret void
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}
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define i8 @test_atomic_load_or_i8(i8 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_or_i8:
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%old = atomicrmw or i8* @var8, i8 %offset seq_cst
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
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; CHECK: movt r[[ADDR]], :upper16:var8
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldaexb r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: orr{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: stlexb [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i8 %old
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}
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define i16 @test_atomic_load_or_i16(i16 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_or_i16:
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%old = atomicrmw or i16* @var16, i16 %offset monotonic
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
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; CHECK: movt r[[ADDR]], :upper16:var16
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldrexh r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
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; function there.
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; CHECK-NEXT: orr{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: strexh [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i16 %old
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}
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define i32 @test_atomic_load_or_i32(i32 %offset) nounwind {
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; CHECK-LABEL: test_atomic_load_or_i32:
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%old = atomicrmw or i32* @var32, i32 %offset acquire
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
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; CHECK: movt r[[ADDR]], :upper16:var32
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; CHECK: .LBB{{[0-9]+}}_1:
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; CHECK: ldaex r[[OLD:[0-9]+]], [r[[ADDR]]]
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; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
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; CHECK-NEXT: orr{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
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; CHECK-NEXT: strex [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
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; CHECK-NEXT: cmp [[STATUS]], #0
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; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
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; CHECK: mov r0, r[[OLD]]
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ret i32 %old
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}
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|
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define void @test_atomic_load_or_i64(i64 %offset) nounwind {
|
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; CHECK-LABEL: test_atomic_load_or_i64:
|
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%old = atomicrmw or i64* @var64, i64 %offset release
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; CHECK-NOT: dmb
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; CHECK-NOT: mcr
|
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; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
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; CHECK: movt r[[ADDR]], :upper16:var64
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; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexd r[[OLD1:[0-9]+]], r[[OLD2:[0-9]+]], [r[[ADDR]]]
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-LE-DAG: orr{{(\.w)?}} [[NEW1:r[0-9]+|lr]], r[[OLD1]], r0
|
|
; CHECK-LE-DAG: orr{{(\.w)?}} [[NEW2:r[0-9]+|lr]], r[[OLD2]], r1
|
|
; CHECK-BE-DAG: orr{{(\.w)?}} [[NEW2:r[0-9]+|lr]], r[[OLD2]], r1
|
|
; CHECK-BE-DAG: orr{{(\.w)?}} [[NEW1:r[0-9]+|lr]], r[[OLD1]], r0
|
|
; CHECK: stlexd [[STATUS:r[0-9]+]], [[NEW1]], [[NEW2]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: strd r[[OLD1]], r[[OLD2]], [r[[ADDR]]]
|
|
store i64 %old, i64* @var64
|
|
ret void
|
|
}
|
|
|
|
define i8 @test_atomic_load_xor_i8(i8 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_xor_i8:
|
|
%old = atomicrmw xor i8* @var8, i8 %offset acquire
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexb r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: eor{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
|
|
; CHECK-NEXT: strexb [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i8 %old
|
|
}
|
|
|
|
define i16 @test_atomic_load_xor_i16(i16 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_xor_i16:
|
|
%old = atomicrmw xor i16* @var16, i16 %offset release
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
|
|
; CHECK: movt r[[ADDR]], :upper16:var16
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexh r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: eor{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
|
|
; CHECK-NEXT: stlexh [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i16 %old
|
|
}
|
|
|
|
define i32 @test_atomic_load_xor_i32(i32 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_xor_i32:
|
|
%old = atomicrmw xor i32* @var32, i32 %offset seq_cst
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
|
|
; CHECK: movt r[[ADDR]], :upper16:var32
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaex r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: eor{{(\.w)?}} [[NEW:r[0-9]+]], r[[OLD]], r0
|
|
; CHECK-NEXT: stlex [[STATUS:r[0-9]+]], [[NEW]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i32 %old
|
|
}
|
|
|
|
define void @test_atomic_load_xor_i64(i64 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_xor_i64:
|
|
%old = atomicrmw xor i64* @var64, i64 %offset monotonic
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
|
|
; CHECK: movt r[[ADDR]], :upper16:var64
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexd r[[OLD1:[0-9]+]], r[[OLD2:[0-9]+]], [r[[ADDR]]]
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-LE-DAG: eor{{(\.w)?}} [[NEW1:r[0-9]+|lr]], r[[OLD1]], r0
|
|
; CHECK-LE-DAG: eor{{(\.w)?}} [[NEW2:r[0-9]+|lr]], r[[OLD2]], r1
|
|
; CHECK-BE-DAG: eor{{(\.w)?}} [[NEW2:r[0-9]+|lr]], r[[OLD2]], r1
|
|
; CHECK-BE-DAG: eor{{(\.w)?}} [[NEW1:r[0-9]+|lr]], r[[OLD1]], r0
|
|
; CHECK: strexd [[STATUS:r[0-9]+]], [[NEW1]], [[NEW2]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: strd r[[OLD1]], r[[OLD2]], [r[[ADDR]]]
|
|
store i64 %old, i64* @var64
|
|
ret void
|
|
}
|
|
|
|
define i8 @test_atomic_load_xchg_i8(i8 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_xchg_i8:
|
|
%old = atomicrmw xchg i8* @var8, i8 %offset monotonic
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexb r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: strexb [[STATUS:r[0-9]+]], r0, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i8 %old
|
|
}
|
|
|
|
define i16 @test_atomic_load_xchg_i16(i16 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_xchg_i16:
|
|
%old = atomicrmw xchg i16* @var16, i16 %offset seq_cst
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
|
|
; CHECK: movt r[[ADDR]], :upper16:var16
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexh r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: stlexh [[STATUS:r[0-9]+]], r0, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i16 %old
|
|
}
|
|
|
|
define i32 @test_atomic_load_xchg_i32(i32 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_xchg_i32:
|
|
%old = atomicrmw xchg i32* @var32, i32 %offset release
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
|
|
; CHECK: movt r[[ADDR]], :upper16:var32
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrex r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: stlex [[STATUS:r[0-9]+]], r0, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i32 %old
|
|
}
|
|
|
|
define void @test_atomic_load_xchg_i64(i64 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_xchg_i64:
|
|
%old = atomicrmw xchg i64* @var64, i64 %offset acquire
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
|
|
; CHECK: movt r[[ADDR]], :upper16:var64
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexd [[OLD1:r[0-9]+]], [[OLD2:r[0-9]+|lr]], [r[[ADDR]]]
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: strexd [[STATUS:r[0-9]+]], r0, r1, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: strd [[OLD1]], [[OLD2]], [r[[ADDR]]]
|
|
store i64 %old, i64* @var64
|
|
ret void
|
|
}
|
|
|
|
define i8 @test_atomic_load_min_i8(i8 signext %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_min_i8:
|
|
%old = atomicrmw min i8* @var8, i8 %offset acquire
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK-DAG: movw [[ADDR:r[0-9]+|lr]], :lower16:var8
|
|
; CHECK-DAG: movt [[ADDR]], :upper16:var8
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexb r[[OLD:[0-9]+]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: sxtb r[[OLDX:[0-9]+]], r[[OLD]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: cmp r[[OLDX]], r0
|
|
; Thumb mode: it le
|
|
; CHECK: movle r[[OLDX]], r[[OLD]]
|
|
; CHECK-NEXT: strexb [[STATUS:r[0-9]+]], r[[OLDX]], {{.*}}[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i8 %old
|
|
}
|
|
|
|
define i16 @test_atomic_load_min_i16(i16 signext %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_min_i16:
|
|
%old = atomicrmw min i16* @var16, i16 %offset release
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw [[ADDR:r[0-9]+|lr]], :lower16:var16
|
|
; CHECK: movt [[ADDR]], :upper16:var16
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexh r[[OLD:[0-9]+]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: sxth r[[OLDX:[0-9]+]], r[[OLD]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: cmp r[[OLDX]], r0
|
|
; Thumb mode: it le
|
|
; CHECK: movle r[[OLDX]], r[[OLD]]
|
|
; CHECK-NEXT: stlexh [[STATUS:r[0-9]+]], r[[OLDX]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i16 %old
|
|
}
|
|
|
|
define i32 @test_atomic_load_min_i32(i32 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_min_i32:
|
|
%old = atomicrmw min i32* @var32, i32 %offset monotonic
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
|
|
; CHECK: movt r[[ADDR]], :upper16:var32
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrex r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: mov r[[NEW:[0-9]+]], r0
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; Thumb mode: it le
|
|
; CHECK: movle r[[NEW]], r[[OLD]]
|
|
; CHECK-NEXT: strex [[STATUS:r[0-9]+]], r[[NEW]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i32 %old
|
|
}
|
|
|
|
define void @test_atomic_load_min_i64(i64 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_min_i64:
|
|
%old = atomicrmw min i64* @var64, i64 %offset seq_cst
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
|
|
; CHECK: movt r[[ADDR]], :upper16:var64
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexd [[OLD1:r[0-9]+|lr]], [[OLD2:r[0-9]+|lr]], [r[[ADDR]]]
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-ARM: mov [[LOCARRY:r[0-9]+|lr]], #0
|
|
; CHECK-ARM: mov [[HICARRY:r[0-9]+|lr]], #0
|
|
; CHECK-ARM-LE: cmp [[OLD1]], r0
|
|
; CHECK-ARM-LE: movwls [[LOCARRY]], #1
|
|
; CHECK-ARM-LE: cmp [[OLD2]], r1
|
|
; CHECK-ARM-LE: movwle [[HICARRY]], #1
|
|
; CHECK-ARM-BE: cmp [[OLD2]], r1
|
|
; CHECK-ARM-BE: movwls [[LOCARRY]], #1
|
|
; CHECK-ARM-BE: cmp [[OLD1]], r0
|
|
; CHECK-ARM-BE: movwle [[HICARRY]], #1
|
|
; CHECK-ARM: moveq [[HICARRY]], [[LOCARRY]]
|
|
; CHECK-ARM: cmp [[HICARRY]], #0
|
|
; CHECK-ARM: mov [[MINHI:r[0-9]+]], r1
|
|
; CHECK-ARM: movne [[MINHI]], [[OLD2]]
|
|
; CHECK-ARM: mov [[MINLO:r[0-9]+]], r0
|
|
; CHECK-ARM: movne [[MINLO]], [[OLD1]]
|
|
; CHECK-ARM: stlexd [[STATUS:r[0-9]+]], [[MINLO]], [[MINHI]], [r[[ADDR]]]
|
|
; CHECK-THUMB: stlexd [[STATUS:r[0-9]+]], {{r[0-9]+}}, {{r[0-9]+}}, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK-ARM: strd [[OLD1]], [[OLD2]], [r[[ADDR]]]
|
|
store i64 %old, i64* @var64
|
|
ret void
|
|
}
|
|
|
|
define i8 @test_atomic_load_max_i8(i8 signext %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_max_i8:
|
|
%old = atomicrmw max i8* @var8, i8 %offset seq_cst
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw [[ADDR:r[0-9]+|lr]], :lower16:var8
|
|
; CHECK: movt [[ADDR]], :upper16:var8
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexb r[[OLD:[0-9]+]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: sxtb r[[OLDX:[0-9]+]], r[[OLD]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: cmp r[[OLDX]], r0
|
|
; Thumb mode: it gt
|
|
; CHECK: movgt r[[OLDX]], r[[OLD]]
|
|
; CHECK-NEXT: stlexb [[STATUS:r[0-9]+]], r[[OLDX]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i8 %old
|
|
}
|
|
|
|
define i16 @test_atomic_load_max_i16(i16 signext %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_max_i16:
|
|
%old = atomicrmw max i16* @var16, i16 %offset acquire
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
|
|
; CHECK: movt r[[ADDR]], :upper16:var16
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexh r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; CHECK-NEXT: sxth r[[OLDX:[0-9]+]], r[[OLD]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: cmp r[[OLDX]], r0
|
|
; Thumb mode: it gt
|
|
; CHECK: movgt r[[OLDX]], r[[OLD]]
|
|
; CHECK-NEXT: strexh [[STATUS:r[0-9]+]], r[[OLDX]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i16 %old
|
|
}
|
|
|
|
define i32 @test_atomic_load_max_i32(i32 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_max_i32:
|
|
%old = atomicrmw max i32* @var32, i32 %offset release
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
|
|
; CHECK: movt r[[ADDR]], :upper16:var32
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrex r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: mov r[[NEW:[0-9]+]], r0
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; Thumb mode: it gt
|
|
; CHECK: movgt r[[NEW]], r[[OLD]]
|
|
; CHECK-NEXT: stlex [[STATUS:r[0-9]+]], r[[NEW]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i32 %old
|
|
}
|
|
|
|
define void @test_atomic_load_max_i64(i64 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_max_i64:
|
|
%old = atomicrmw max i64* @var64, i64 %offset monotonic
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
|
|
; CHECK: movt r[[ADDR]], :upper16:var64
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexd [[OLD1:r[0-9]+]], [[OLD2:r[0-9]+|lr]], [r[[ADDR]]]
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-ARM: mov [[LOCARRY:r[0-9]+|lr]], #0
|
|
; CHECK-ARM: mov [[HICARRY:r[0-9]+|lr]], #0
|
|
; CHECK-ARM-LE: cmp [[OLD1]], r0
|
|
; CHECK-ARM-LE: movwhi [[LOCARRY]], #1
|
|
; CHECK-ARM-LE: cmp [[OLD2]], r1
|
|
; CHECK-ARM-LE: movwgt [[HICARRY]], #1
|
|
; CHECK-ARM-BE: cmp [[OLD2]], r1
|
|
; CHECK-ARM-BE: movwhi [[LOCARRY]], #1
|
|
; CHECK-ARM-BE: cmp [[OLD1]], r0
|
|
; CHECK-ARM-BE: movwgt [[HICARRY]], #1
|
|
; CHECK-ARM: moveq [[HICARRY]], [[LOCARRY]]
|
|
; CHECK-ARM: cmp [[HICARRY]], #0
|
|
; CHECK-ARM: mov [[MINHI:r[0-9]+]], r1
|
|
; CHECK-ARM: movne [[MINHI]], [[OLD2]]
|
|
; CHECK-ARM: mov [[MINLO:r[0-9]+]], r0
|
|
; CHECK-ARM: movne [[MINLO]], [[OLD1]]
|
|
; CHECK-ARM: strexd [[STATUS:r[0-9]+]], [[MINLO]], [[MINHI]], [r[[ADDR]]]
|
|
; CHECK-THUMB: strexd [[STATUS:r[0-9]+]], {{r[0-9]+}}, {{r[0-9]+}}, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK-ARM: strd [[OLD1]], [[OLD2]], [r[[ADDR]]]
|
|
store i64 %old, i64* @var64
|
|
ret void
|
|
}
|
|
|
|
define i8 @test_atomic_load_umin_i8(i8 zeroext %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_umin_i8:
|
|
%old = atomicrmw umin i8* @var8, i8 %offset monotonic
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw [[ADDR:r[0-9]+|lr]], :lower16:var8
|
|
; CHECK: movt [[ADDR]], :upper16:var8
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexb r[[OLD:[0-9]+]], {{.*}}[[ADDR]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: mov r[[NEW:[0-9]+]], r0
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; Thumb mode: it ls
|
|
; CHECK: movls r[[NEW]], r[[OLD]]
|
|
; CHECK-NEXT: strexb [[STATUS:r[0-9]+]], r[[NEW]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i8 %old
|
|
}
|
|
|
|
define i16 @test_atomic_load_umin_i16(i16 zeroext %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_umin_i16:
|
|
%old = atomicrmw umin i16* @var16, i16 %offset acquire
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw [[ADDR:r[0-9]+|lr]], :lower16:var16
|
|
; CHECK: movt [[ADDR]], :upper16:var16
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexh r[[OLD:[0-9]+]], {{.*}}[[ADDR]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: mov r[[NEW:[0-9]+]], r0
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; Thumb mode: it ls
|
|
; CHECK: movls r[[NEW]], r[[OLD]]
|
|
; CHECK-NEXT: strexh [[STATUS:r[0-9]+]], r[[NEW]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i16 %old
|
|
}
|
|
|
|
define i32 @test_atomic_load_umin_i32(i32 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_umin_i32:
|
|
%old = atomicrmw umin i32* @var32, i32 %offset seq_cst
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
|
|
; CHECK: movt r[[ADDR]], :upper16:var32
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaex r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: mov r[[NEW:[0-9]+]], r0
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; Thumb mode: it ls
|
|
; CHECK: movls r[[NEW]], r[[OLD]]
|
|
; CHECK-NEXT: stlex [[STATUS:r[0-9]+]], r[[NEW]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i32 %old
|
|
}
|
|
|
|
define void @test_atomic_load_umin_i64(i64 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_umin_i64:
|
|
%old = atomicrmw umin i64* @var64, i64 %offset seq_cst
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
|
|
; CHECK: movt r[[ADDR]], :upper16:var64
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexd [[OLD1:r[0-9]+|lr]], [[OLD2:r[0-9]+|lr]], [r[[ADDR]]]
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-ARM: mov [[LOCARRY:r[0-9]+|lr]], #0
|
|
; CHECK-ARM: mov [[HICARRY:r[0-9]+|lr]], #0
|
|
; CHECK-ARM-LE: cmp [[OLD1]], r0
|
|
; CHECK-ARM-LE: movwls [[LOCARRY]], #1
|
|
; CHECK-ARM-LE: cmp [[OLD2]], r1
|
|
; CHECK-ARM-LE: movwls [[HICARRY]], #1
|
|
; CHECK-ARM-BE: cmp [[OLD2]], r1
|
|
; CHECK-ARM-BE: movwls [[LOCARRY]], #1
|
|
; CHECK-ARM-BE: cmp [[OLD1]], r0
|
|
; CHECK-ARM-BE: movwls [[HICARRY]], #1
|
|
; CHECK-ARM: moveq [[HICARRY]], [[LOCARRY]]
|
|
; CHECK-ARM: cmp [[HICARRY]], #0
|
|
; CHECK-ARM: mov [[MINHI:r[0-9]+]], r1
|
|
; CHECK-ARM: movne [[MINHI]], [[OLD2]]
|
|
; CHECK-ARM: mov [[MINLO:r[0-9]+]], r0
|
|
; CHECK-ARM: movne [[MINLO]], [[OLD1]]
|
|
; CHECK-ARM: stlexd [[STATUS:r[0-9]+]], [[MINLO]], [[MINHI]], [r[[ADDR]]]
|
|
; CHECK-THUMB: stlexd [[STATUS:r[0-9]+]], {{r[0-9]+}}, {{r[0-9]+}}, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK-ARM: strd [[OLD1]], [[OLD2]], [r[[ADDR]]]
|
|
store i64 %old, i64* @var64
|
|
ret void
|
|
}
|
|
|
|
define i8 @test_atomic_load_umax_i8(i8 zeroext %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_umax_i8:
|
|
%old = atomicrmw umax i8* @var8, i8 %offset acq_rel
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw [[ADDR:r[0-9]+|lr]], :lower16:var8
|
|
; CHECK: movt [[ADDR]], :upper16:var8
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexb r[[OLD:[0-9]+]], {{.*}}[[ADDR]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: mov r[[NEW:[0-9]+]], r0
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; Thumb mode: it hi
|
|
; CHECK: movhi r[[NEW]], r[[OLD]]
|
|
; CHECK-NEXT: stlexb [[STATUS:r[0-9]+]], r[[NEW]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i8 %old
|
|
}
|
|
|
|
define i16 @test_atomic_load_umax_i16(i16 zeroext %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_umax_i16:
|
|
%old = atomicrmw umax i16* @var16, i16 %offset monotonic
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw [[ADDR:r[0-9]+|lr]], :lower16:var16
|
|
; CHECK: movt [[ADDR]], :upper16:var16
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexh r[[OLD:[0-9]+]], {{.*}}[[ADDR]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: mov r[[NEW:[0-9]+]], r0
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; Thumb mode: it hi
|
|
; CHECK: movhi r[[NEW]], r[[OLD]]
|
|
; CHECK-NEXT: strexh [[STATUS:r[0-9]+]], r[[NEW]], {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i16 %old
|
|
}
|
|
|
|
define i32 @test_atomic_load_umax_i32(i32 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_umax_i32:
|
|
%old = atomicrmw umax i32* @var32, i32 %offset seq_cst
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
|
|
; CHECK: movt r[[ADDR]], :upper16:var32
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaex r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: mov r[[NEW:[0-9]+]], r0
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; Thumb mode: it hi
|
|
; CHECK: movhi r[[NEW]], r[[OLD]]
|
|
; CHECK-NEXT: stlex [[STATUS:r[0-9]+]], r[[NEW]], [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i32 %old
|
|
}
|
|
|
|
define void @test_atomic_load_umax_i64(i64 %offset) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_umax_i64:
|
|
%old = atomicrmw umax i64* @var64, i64 %offset seq_cst
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
|
|
; CHECK: movt r[[ADDR]], :upper16:var64
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexd [[OLD1:r[0-9]+|lr]], [[OLD2:r[0-9]+|lr]], [r[[ADDR]]]
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-ARM: mov [[LOCARRY:r[0-9]+|lr]], #0
|
|
; CHECK-ARM: mov [[HICARRY:r[0-9]+|lr]], #0
|
|
; CHECK-ARM-LE: cmp [[OLD1]], r0
|
|
; CHECK-ARM-LE: movwhi [[LOCARRY]], #1
|
|
; CHECK-ARM-LE: cmp [[OLD2]], r1
|
|
; CHECK-ARM-LE: movwhi [[HICARRY]], #1
|
|
; CHECK-ARM-BE: cmp [[OLD2]], r1
|
|
; CHECK-ARM-BE: movwhi [[LOCARRY]], #1
|
|
; CHECK-ARM-BE: cmp [[OLD1]], r0
|
|
; CHECK-ARM-BE: movwhi [[HICARRY]], #1
|
|
; CHECK-ARM: moveq [[HICARRY]], [[LOCARRY]]
|
|
; CHECK-ARM: cmp [[HICARRY]], #0
|
|
; CHECK-ARM: mov [[MINHI:r[0-9]+]], r1
|
|
; CHECK-ARM: movne [[MINHI]], [[OLD2]]
|
|
; CHECK-ARM: mov [[MINLO:r[0-9]+]], r0
|
|
; CHECK-ARM: movne [[MINLO]], [[OLD1]]
|
|
; CHECK-ARM: stlexd [[STATUS:r[0-9]+]], [[MINLO]], [[MINHI]], [r[[ADDR]]]
|
|
; CHECK-THUMB: stlexd [[STATUS:r[0-9]+]], {{r[0-9]+}}, {{r[0-9]+}}, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK-ARM: strd [[OLD1]], [[OLD2]], [r[[ADDR]]]
|
|
store i64 %old, i64* @var64
|
|
ret void
|
|
}
|
|
|
|
define i8 @test_atomic_cmpxchg_i8(i8 zeroext %wanted, i8 zeroext %new) nounwind {
|
|
; CHECK-LABEL: test_atomic_cmpxchg_i8:
|
|
%pair = cmpxchg i8* @var8, i8 %wanted, i8 %new acquire acquire
|
|
%old = extractvalue { i8, i1 } %pair, 0
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexb r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_3
|
|
; CHECK-NEXT: BB#2:
|
|
; As above, r1 is a reasonable guess.
|
|
; CHECK: strexb [[STATUS:r[0-9]+]], r1, {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i8 %old
|
|
}
|
|
|
|
define i16 @test_atomic_cmpxchg_i16(i16 zeroext %wanted, i16 zeroext %new) nounwind {
|
|
; CHECK-LABEL: test_atomic_cmpxchg_i16:
|
|
%pair = cmpxchg i16* @var16, i16 %wanted, i16 %new seq_cst seq_cst
|
|
%old = extractvalue { i16, i1 } %pair, 0
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
|
|
; CHECK: movt r[[ADDR]], :upper16:var16
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldaexh r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_3
|
|
; CHECK-NEXT: BB#2:
|
|
; As above, r1 is a reasonable guess.
|
|
; CHECK: stlexh [[STATUS:r[0-9]+]], r1, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: mov r0, r[[OLD]]
|
|
ret i16 %old
|
|
}
|
|
|
|
define void @test_atomic_cmpxchg_i32(i32 %wanted, i32 %new) nounwind {
|
|
; CHECK-LABEL: test_atomic_cmpxchg_i32:
|
|
%pair = cmpxchg i32* @var32, i32 %wanted, i32 %new release monotonic
|
|
%old = extractvalue { i32, i1 } %pair, 0
|
|
store i32 %old, i32* @var32
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var32
|
|
; CHECK: movt r[[ADDR]], :upper16:var32
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrex r[[OLD:[0-9]+]], [r[[ADDR]]]
|
|
; r0 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-NEXT: cmp r[[OLD]], r0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_3
|
|
; CHECK-NEXT: BB#2:
|
|
; As above, r1 is a reasonable guess.
|
|
; CHECK: stlex [[STATUS:r[0-9]+]], r1, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK: str{{(.w)?}} r[[OLD]],
|
|
ret void
|
|
}
|
|
|
|
define void @test_atomic_cmpxchg_i64(i64 %wanted, i64 %new) nounwind {
|
|
; CHECK-LABEL: test_atomic_cmpxchg_i64:
|
|
%pair = cmpxchg i64* @var64, i64 %wanted, i64 %new monotonic monotonic
|
|
%old = extractvalue { i64, i1 } %pair, 0
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
|
|
; CHECK: movt r[[ADDR]], :upper16:var64
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; CHECK: ldrexd [[OLD1:r[0-9]+|lr]], [[OLD2:r[0-9]+|lr]], [r[[ADDR]]]
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK-LE-DAG: eor{{(\.w)?}} [[MISMATCH_LO:r[0-9]+|lr]], [[OLD1]], r0
|
|
; CHECK-LE-DAG: eor{{(\.w)?}} [[MISMATCH_HI:r[0-9]+|lr]], [[OLD2]], r1
|
|
; CHECK-ARM-LE: orrs{{(\.w)?}} {{r[0-9]+}}, [[MISMATCH_LO]], [[MISMATCH_HI]]
|
|
; CHECK-THUMB-LE: orrs{{(\.w)?}} {{(r[0-9]+, )?}}[[MISMATCH_HI]], [[MISMATCH_LO]]
|
|
; CHECK-BE-DAG: eor{{(\.w)?}} [[MISMATCH_HI:r[0-9]+|lr]], [[OLD2]], r1
|
|
; CHECK-BE-DAG: eor{{(\.w)?}} [[MISMATCH_LO:r[0-9]+|lr]], [[OLD1]], r0
|
|
; CHECK-ARM-BE: orrs{{(\.w)?}} {{r[0-9]+}}, [[MISMATCH_HI]], [[MISMATCH_LO]]
|
|
; CHECK-THUMB-BE: orrs{{(\.w)?}} {{(r[0-9]+, )?}}[[MISMATCH_LO]], [[MISMATCH_HI]]
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_3
|
|
; CHECK-NEXT: BB#2:
|
|
; As above, r2, r3 is a reasonable guess.
|
|
; CHECK: strexd [[STATUS:r[0-9]+]], r2, r3, [r[[ADDR]]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
; CHECK-ARM: strd [[OLD1]], [[OLD2]], [r[[ADDR]]]
|
|
store i64 %old, i64* @var64
|
|
ret void
|
|
}
|
|
|
|
define i8 @test_atomic_load_monotonic_i8() nounwind {
|
|
; CHECK-LABEL: test_atomic_load_monotonic_i8:
|
|
%val = load atomic i8, i8* @var8 monotonic, align 1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
; CHECK: ldrb r0, [r[[ADDR]]]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
ret i8 %val
|
|
}
|
|
|
|
define i8 @test_atomic_load_monotonic_regoff_i8(i64 %base, i64 %off) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_monotonic_regoff_i8:
|
|
%addr_int = add i64 %base, %off
|
|
%addr = inttoptr i64 %addr_int to i8*
|
|
|
|
%val = load atomic i8, i8* %addr monotonic, align 1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK-LE: ldrb r0, [r0, r2]
|
|
; CHECK-BE: ldrb r0, [r1, r3]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
ret i8 %val
|
|
}
|
|
|
|
define i8 @test_atomic_load_acquire_i8() nounwind {
|
|
; CHECK-LABEL: test_atomic_load_acquire_i8:
|
|
%val = load atomic i8, i8* @var8 acquire, align 1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: ldab r0, [r[[ADDR]]]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
ret i8 %val
|
|
}
|
|
|
|
define i8 @test_atomic_load_seq_cst_i8() nounwind {
|
|
; CHECK-LABEL: test_atomic_load_seq_cst_i8:
|
|
%val = load atomic i8, i8* @var8 seq_cst, align 1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: ldab r0, [r[[ADDR]]]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
ret i8 %val
|
|
}
|
|
|
|
define i16 @test_atomic_load_monotonic_i16() nounwind {
|
|
; CHECK-LABEL: test_atomic_load_monotonic_i16:
|
|
%val = load atomic i16, i16* @var16 monotonic, align 2
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movt r[[ADDR]], :upper16:var16
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: ldrh r0, [r[[ADDR]]]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
ret i16 %val
|
|
}
|
|
|
|
define i32 @test_atomic_load_monotonic_regoff_i32(i64 %base, i64 %off) nounwind {
|
|
; CHECK-LABEL: test_atomic_load_monotonic_regoff_i32:
|
|
%addr_int = add i64 %base, %off
|
|
%addr = inttoptr i64 %addr_int to i32*
|
|
|
|
%val = load atomic i32, i32* %addr monotonic, align 4
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK-LE: ldr r0, [r0, r2]
|
|
; CHECK-BE: ldr r0, [r1, r3]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
ret i32 %val
|
|
}
|
|
|
|
define i64 @test_atomic_load_seq_cst_i64() nounwind {
|
|
; CHECK-LABEL: test_atomic_load_seq_cst_i64:
|
|
%val = load atomic i64, i64* @var64 seq_cst, align 8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var64
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movt r[[ADDR]], :upper16:var64
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: ldaexd r0, r1, [r[[ADDR]]]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
ret i64 %val
|
|
}
|
|
|
|
define void @test_atomic_store_monotonic_i8(i8 %val) nounwind {
|
|
; CHECK-LABEL: test_atomic_store_monotonic_i8:
|
|
store atomic i8 %val, i8* @var8 monotonic, align 1
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
; CHECK: strb r0, [r[[ADDR]]]
|
|
|
|
ret void
|
|
}
|
|
|
|
define void @test_atomic_store_monotonic_regoff_i8(i64 %base, i64 %off, i8 %val) nounwind {
|
|
; CHECK-LABEL: test_atomic_store_monotonic_regoff_i8:
|
|
|
|
%addr_int = add i64 %base, %off
|
|
%addr = inttoptr i64 %addr_int to i8*
|
|
|
|
store atomic i8 %val, i8* %addr monotonic, align 1
|
|
; CHECK-LE: ldr{{b?(\.w)?}} [[VAL:r[0-9]+]], [sp]
|
|
; CHECK-LE: strb [[VAL]], [r0, r2]
|
|
; CHECK-BE: ldrb{{(\.w)?}} [[VAL:r[0-9]+]], [sp, #3]
|
|
; CHECK-BE: strb [[VAL]], [r1, r3]
|
|
|
|
ret void
|
|
}
|
|
|
|
define void @test_atomic_store_release_i8(i8 %val) nounwind {
|
|
; CHECK-LABEL: test_atomic_store_release_i8:
|
|
store atomic i8 %val, i8* @var8 release, align 1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: stlb r0, [r[[ADDR]]]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
ret void
|
|
}
|
|
|
|
define void @test_atomic_store_seq_cst_i8(i8 %val) nounwind {
|
|
; CHECK-LABEL: test_atomic_store_seq_cst_i8:
|
|
store atomic i8 %val, i8* @var8 seq_cst, align 1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movt r[[ADDR]], :upper16:var8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: stlb r0, [r[[ADDR]]]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
ret void
|
|
}
|
|
|
|
define void @test_atomic_store_monotonic_i16(i16 %val) nounwind {
|
|
; CHECK-LABEL: test_atomic_store_monotonic_i16:
|
|
store atomic i16 %val, i16* @var16 monotonic, align 2
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw r[[ADDR:[0-9]+]], :lower16:var16
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movt r[[ADDR]], :upper16:var16
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: strh r0, [r[[ADDR]]]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
ret void
|
|
}
|
|
|
|
define void @test_atomic_store_monotonic_regoff_i32(i64 %base, i64 %off, i32 %val) nounwind {
|
|
; CHECK-LABEL: test_atomic_store_monotonic_regoff_i32:
|
|
|
|
%addr_int = add i64 %base, %off
|
|
%addr = inttoptr i64 %addr_int to i32*
|
|
|
|
store atomic i32 %val, i32* %addr monotonic, align 4
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: ldr [[VAL:r[0-9]+]], [sp]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK-LE: str [[VAL]], [r0, r2]
|
|
; CHECK-BE: str [[VAL]], [r1, r3]
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
ret void
|
|
}
|
|
|
|
define void @test_atomic_store_release_i64(i64 %val) nounwind {
|
|
; CHECK-LABEL: test_atomic_store_release_i64:
|
|
store atomic i64 %val, i64* @var64 release, align 8
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
; CHECK: movw [[ADDR:r[0-9]+|lr]], :lower16:var64
|
|
; CHECK: movt [[ADDR]], :upper16:var64
|
|
|
|
; CHECK: .LBB{{[0-9]+}}_1:
|
|
; r0, r1 below is a reasonable guess but could change: it certainly comes into the
|
|
; function there.
|
|
; CHECK: stlexd [[STATUS:r[0-9]+]], r0, r1, {{.*}}[[ADDR]]
|
|
; CHECK-NEXT: cmp [[STATUS]], #0
|
|
; CHECK-NEXT: bne .LBB{{[0-9]+}}_1
|
|
; CHECK-NOT: dmb
|
|
; CHECK-NOT: mcr
|
|
|
|
ret void
|
|
}
|
|
|
|
define i32 @not.barriers(i32* %var, i1 %cond) {
|
|
; CHECK-LABEL: not.barriers:
|
|
br i1 %cond, label %atomic_ver, label %simple_ver
|
|
simple_ver:
|
|
%oldval = load i32, i32* %var
|
|
%newval = add nsw i32 %oldval, -1
|
|
store i32 %newval, i32* %var
|
|
br label %somewhere
|
|
atomic_ver:
|
|
fence seq_cst
|
|
%val = atomicrmw add i32* %var, i32 -1 monotonic
|
|
fence seq_cst
|
|
br label %somewhere
|
|
; CHECK: dmb
|
|
; CHECK: ldrex
|
|
; CHECK: dmb
|
|
; The key point here is that the second dmb isn't immediately followed by the
|
|
; simple_ver basic block, which LLVM attempted to do when DMB had been marked
|
|
; with isBarrier. For now, look for something that looks like "somewhere".
|
|
; CHECK-NEXT: {{mov|bx}}
|
|
somewhere:
|
|
%combined = phi i32 [ %val, %atomic_ver ], [ %newval, %simple_ver]
|
|
ret i32 %combined
|
|
}
|