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llvm-mirror/test/CodeGen/PowerPC/atomics.ll

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --force-update
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-unknown-linux-gnu -verify-machineinstrs -ppc-asm-full-reg-names | FileCheck %s --check-prefix=CHECK --check-prefix=PPC32
; This is already checked for in Atomics-64.ll
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu -ppc-asm-full-reg-names | FileCheck %s --check-prefix=CHECK --check-prefix=PPC64
; FIXME: we don't currently check for the operations themselves with CHECK-NEXT,
; because they are implemented in a very messy way with lwarx/stwcx.
; It should be fixed soon in another patch.
; We first check loads, for all sizes from i8 to i64.
; We also vary orderings to check for barriers.
define i8 @load_i8_unordered(i8* %mem) {
; CHECK-LABEL: load_i8_unordered:
; CHECK: # %bb.0:
; CHECK-NEXT: lbz r3, 0(r3)
; CHECK-NEXT: blr
%val = load atomic i8, i8* %mem unordered, align 1
ret i8 %val
}
define i16 @load_i16_monotonic(i16* %mem) {
; CHECK-LABEL: load_i16_monotonic:
; CHECK: # %bb.0:
; CHECK-NEXT: lhz r3, 0(r3)
; CHECK-NEXT: blr
%val = load atomic i16, i16* %mem monotonic, align 2
ret i16 %val
}
define i32 @load_i32_acquire(i32* %mem) {
; PPC32-LABEL: load_i32_acquire:
; PPC32: # %bb.0:
; PPC32-NEXT: lwz r3, 0(r3)
; PPC32-NEXT: lwsync
; PPC32-NEXT: blr
;
; PPC64-LABEL: load_i32_acquire:
; PPC64: # %bb.0:
; PPC64-NEXT: lwz r3, 0(r3)
; PPC64-NEXT: cmpd cr7, r3, r3
; PPC64-NEXT: bne- cr7, .+4
; PPC64-NEXT: isync
; PPC64-NEXT: blr
%val = load atomic i32, i32* %mem acquire, align 4
; CHECK-PPC32: lwsync
; CHECK-PPC64: cmpw [[CR:cr[0-9]+]], [[VAL]], [[VAL]]
; CHECK-PPC64: bne- [[CR]], .+4
; CHECK-PPC64: isync
ret i32 %val
}
define i64 @load_i64_seq_cst(i64* %mem) {
; PPC32-LABEL: load_i64_seq_cst:
; PPC32: # %bb.0:
; PPC32-NEXT: mflr r0
; PPC32-NEXT: stw r0, 4(r1)
; PPC32-NEXT: stwu r1, -16(r1)
; PPC32-NEXT: .cfi_def_cfa_offset 16
; PPC32-NEXT: .cfi_offset lr, 4
; PPC32-NEXT: li r4, 5
; PPC32-NEXT: bl __atomic_load_8
; PPC32-NEXT: lwz r0, 20(r1)
; PPC32-NEXT: addi r1, r1, 16
; PPC32-NEXT: mtlr r0
; PPC32-NEXT: blr
;
; PPC64-LABEL: load_i64_seq_cst:
; PPC64: # %bb.0:
; PPC64-NEXT: sync
; PPC64-NEXT: ld r3, 0(r3)
; PPC64-NEXT: cmpd cr7, r3, r3
; PPC64-NEXT: bne- cr7, .+4
; PPC64-NEXT: isync
; PPC64-NEXT: blr
%val = load atomic i64, i64* %mem seq_cst, align 8
; CHECK-PPC32: lwsync
; CHECK-PPC64: cmpw [[CR:cr[0-9]+]], [[VAL]], [[VAL]]
; CHECK-PPC64: bne- [[CR]], .+4
; CHECK-PPC64: isync
ret i64 %val
}
; Stores
define void @store_i8_unordered(i8* %mem) {
; CHECK-LABEL: store_i8_unordered:
; CHECK: # %bb.0:
; CHECK-NEXT: li r4, 42
; CHECK-NEXT: stb r4, 0(r3)
; CHECK-NEXT: blr
store atomic i8 42, i8* %mem unordered, align 1
ret void
}
define void @store_i16_monotonic(i16* %mem) {
; CHECK-LABEL: store_i16_monotonic:
; CHECK: # %bb.0:
; CHECK-NEXT: li r4, 42
; CHECK-NEXT: sth r4, 0(r3)
; CHECK-NEXT: blr
store atomic i16 42, i16* %mem monotonic, align 2
ret void
}
define void @store_i32_release(i32* %mem) {
; CHECK-LABEL: store_i32_release:
; CHECK: # %bb.0:
; CHECK-NEXT: li r4, 42
; CHECK-NEXT: lwsync
; CHECK-NEXT: stw r4, 0(r3)
; CHECK-NEXT: blr
store atomic i32 42, i32* %mem release, align 4
ret void
}
define void @store_i64_seq_cst(i64* %mem) {
; PPC32-LABEL: store_i64_seq_cst:
; PPC32: # %bb.0:
; PPC32-NEXT: mflr r0
; PPC32-NEXT: stw r0, 4(r1)
; PPC32-NEXT: stwu r1, -16(r1)
; PPC32-NEXT: .cfi_def_cfa_offset 16
; PPC32-NEXT: .cfi_offset lr, 4
; PPC32-NEXT: li r5, 0
; PPC32-NEXT: li r6, 42
; PPC32-NEXT: li r7, 5
; PPC32-NEXT: bl __atomic_store_8
; PPC32-NEXT: lwz r0, 20(r1)
; PPC32-NEXT: addi r1, r1, 16
; PPC32-NEXT: mtlr r0
; PPC32-NEXT: blr
;
; PPC64-LABEL: store_i64_seq_cst:
; PPC64: # %bb.0:
; PPC64-NEXT: li r4, 42
; PPC64-NEXT: sync
; PPC64-NEXT: std r4, 0(r3)
; PPC64-NEXT: blr
store atomic i64 42, i64* %mem seq_cst, align 8
ret void
}
; Atomic CmpXchg
define i8 @cas_strong_i8_sc_sc(i8* %mem) {
; PPC32-LABEL: cas_strong_i8_sc_sc:
; PPC32: # %bb.0:
; PPC32-NEXT: rlwinm r8, r3, 3, 27, 28
; PPC32-NEXT: li r5, 1
; PPC32-NEXT: li r6, 0
; PPC32-NEXT: li r7, 255
; PPC32-NEXT: rlwinm r4, r3, 0, 0, 29
; PPC32-NEXT: xori r3, r8, 24
; PPC32-NEXT: slw r5, r5, r3
; PPC32-NEXT: slw r8, r6, r3
; PPC32-NEXT: slw r6, r7, r3
; PPC32-NEXT: and r7, r5, r6
; PPC32-NEXT: and r8, r8, r6
; PPC32-NEXT: sync
; PPC32-NEXT: .LBB8_1:
; PPC32-NEXT: lwarx r9, 0, r4
; PPC32-NEXT: and r5, r9, r6
; PPC32-NEXT: cmpw r5, r8
; PPC32-NEXT: bne cr0, .LBB8_3
; PPC32-NEXT: # %bb.2:
; PPC32-NEXT: andc r9, r9, r6
; PPC32-NEXT: or r9, r9, r7
; PPC32-NEXT: stwcx. r9, 0, r4
; PPC32-NEXT: bne cr0, .LBB8_1
; PPC32-NEXT: b .LBB8_4
; PPC32-NEXT: .LBB8_3:
; PPC32-NEXT: stwcx. r9, 0, r4
; PPC32-NEXT: .LBB8_4:
; PPC32-NEXT: srw r3, r5, r3
; PPC32-NEXT: lwsync
; PPC32-NEXT: blr
;
; PPC64-LABEL: cas_strong_i8_sc_sc:
; PPC64: # %bb.0:
; PPC64-NEXT: rlwinm r8, r3, 3, 27, 28
; PPC64-NEXT: li r5, 1
; PPC64-NEXT: li r6, 0
; PPC64-NEXT: li r7, 255
; PPC64-NEXT: rldicr r4, r3, 0, 61
; PPC64-NEXT: xori r3, r8, 24
; PPC64-NEXT: slw r5, r5, r3
; PPC64-NEXT: slw r8, r6, r3
; PPC64-NEXT: slw r6, r7, r3
; PPC64-NEXT: and r7, r5, r6
; PPC64-NEXT: and r8, r8, r6
; PPC64-NEXT: sync
; PPC64-NEXT: .LBB8_1:
; PPC64-NEXT: lwarx r9, 0, r4
; PPC64-NEXT: and r5, r9, r6
; PPC64-NEXT: cmpw r5, r8
; PPC64-NEXT: bne cr0, .LBB8_3
; PPC64-NEXT: # %bb.2:
; PPC64-NEXT: andc r9, r9, r6
; PPC64-NEXT: or r9, r9, r7
; PPC64-NEXT: stwcx. r9, 0, r4
; PPC64-NEXT: bne cr0, .LBB8_1
; PPC64-NEXT: b .LBB8_4
; PPC64-NEXT: .LBB8_3:
; PPC64-NEXT: stwcx. r9, 0, r4
; PPC64-NEXT: .LBB8_4:
; PPC64-NEXT: srw r3, r5, r3
; PPC64-NEXT: lwsync
; PPC64-NEXT: blr
%val = cmpxchg i8* %mem, i8 0, i8 1 seq_cst seq_cst
%loaded = extractvalue { i8, i1} %val, 0
ret i8 %loaded
}
define i16 @cas_weak_i16_acquire_acquire(i16* %mem) {
; PPC32-LABEL: cas_weak_i16_acquire_acquire:
; PPC32: # %bb.0:
; PPC32-NEXT: li r6, 0
; PPC32-NEXT: rlwinm r4, r3, 3, 27, 27
; PPC32-NEXT: li r5, 1
; PPC32-NEXT: ori r7, r6, 65535
; PPC32-NEXT: xori r4, r4, 16
; PPC32-NEXT: slw r8, r5, r4
; PPC32-NEXT: slw r9, r6, r4
; PPC32-NEXT: slw r5, r7, r4
; PPC32-NEXT: rlwinm r3, r3, 0, 0, 29
; PPC32-NEXT: and r6, r8, r5
; PPC32-NEXT: and r8, r9, r5
; PPC32-NEXT: .LBB9_1:
; PPC32-NEXT: lwarx r9, 0, r3
; PPC32-NEXT: and r7, r9, r5
; PPC32-NEXT: cmpw r7, r8
; PPC32-NEXT: bne cr0, .LBB9_3
; PPC32-NEXT: # %bb.2:
; PPC32-NEXT: andc r9, r9, r5
; PPC32-NEXT: or r9, r9, r6
; PPC32-NEXT: stwcx. r9, 0, r3
; PPC32-NEXT: bne cr0, .LBB9_1
; PPC32-NEXT: b .LBB9_4
; PPC32-NEXT: .LBB9_3:
; PPC32-NEXT: stwcx. r9, 0, r3
; PPC32-NEXT: .LBB9_4:
; PPC32-NEXT: srw r3, r7, r4
; PPC32-NEXT: lwsync
; PPC32-NEXT: blr
;
; PPC64-LABEL: cas_weak_i16_acquire_acquire:
; PPC64: # %bb.0:
; PPC64-NEXT: li r6, 0
; PPC64-NEXT: rlwinm r4, r3, 3, 27, 27
; PPC64-NEXT: li r5, 1
; PPC64-NEXT: ori r7, r6, 65535
; PPC64-NEXT: xori r4, r4, 16
; PPC64-NEXT: slw r8, r5, r4
; PPC64-NEXT: slw r9, r6, r4
; PPC64-NEXT: slw r5, r7, r4
; PPC64-NEXT: rldicr r3, r3, 0, 61
; PPC64-NEXT: and r6, r8, r5
; PPC64-NEXT: and r8, r9, r5
; PPC64-NEXT: .LBB9_1:
; PPC64-NEXT: lwarx r9, 0, r3
; PPC64-NEXT: and r7, r9, r5
; PPC64-NEXT: cmpw r7, r8
; PPC64-NEXT: bne cr0, .LBB9_3
; PPC64-NEXT: # %bb.2:
; PPC64-NEXT: andc r9, r9, r5
; PPC64-NEXT: or r9, r9, r6
; PPC64-NEXT: stwcx. r9, 0, r3
; PPC64-NEXT: bne cr0, .LBB9_1
; PPC64-NEXT: b .LBB9_4
; PPC64-NEXT: .LBB9_3:
; PPC64-NEXT: stwcx. r9, 0, r3
; PPC64-NEXT: .LBB9_4:
; PPC64-NEXT: srw r3, r7, r4
; PPC64-NEXT: lwsync
; PPC64-NEXT: blr
%val = cmpxchg weak i16* %mem, i16 0, i16 1 acquire acquire
%loaded = extractvalue { i16, i1} %val, 0
ret i16 %loaded
}
define i32 @cas_strong_i32_acqrel_acquire(i32* %mem) {
; CHECK-LABEL: cas_strong_i32_acqrel_acquire:
; CHECK: # %bb.0:
; CHECK-NEXT: li r5, 1
; CHECK-NEXT: li r6, 0
; CHECK-NEXT: lwsync
; CHECK-NEXT: .LBB10_1:
; CHECK-NEXT: lwarx r4, 0, r3
; CHECK-NEXT: cmpw r6, r4
; CHECK-NEXT: bne cr0, .LBB10_3
; CHECK-NEXT: # %bb.2:
; CHECK-NEXT: stwcx. r5, 0, r3
; CHECK-NEXT: bne cr0, .LBB10_1
; CHECK-NEXT: b .LBB10_4
; CHECK-NEXT: .LBB10_3:
; CHECK-NEXT: stwcx. r4, 0, r3
; CHECK-NEXT: .LBB10_4:
; CHECK-NEXT: mr r3, r4
; CHECK-NEXT: lwsync
; CHECK-NEXT: blr
%val = cmpxchg i32* %mem, i32 0, i32 1 acq_rel acquire
%loaded = extractvalue { i32, i1} %val, 0
ret i32 %loaded
}
define i64 @cas_weak_i64_release_monotonic(i64* %mem) {
; PPC32-LABEL: cas_weak_i64_release_monotonic:
; PPC32: # %bb.0:
; PPC32-NEXT: mflr r0
; PPC32-NEXT: stw r0, 4(r1)
; PPC32-NEXT: stwu r1, -16(r1)
; PPC32-NEXT: .cfi_def_cfa_offset 16
; PPC32-NEXT: .cfi_offset lr, 4
; PPC32-NEXT: li r4, 0
; PPC32-NEXT: stw r4, 12(r1)
; PPC32-NEXT: li r5, 0
; PPC32-NEXT: stw r4, 8(r1)
; PPC32-NEXT: addi r4, r1, 8
; PPC32-NEXT: li r6, 1
; PPC32-NEXT: li r7, 3
; PPC32-NEXT: li r8, 0
; PPC32-NEXT: bl __atomic_compare_exchange_8
; PPC32-NEXT: lwz r4, 12(r1)
; PPC32-NEXT: lwz r3, 8(r1)
; PPC32-NEXT: lwz r0, 20(r1)
; PPC32-NEXT: addi r1, r1, 16
; PPC32-NEXT: mtlr r0
; PPC32-NEXT: blr
;
; PPC64-LABEL: cas_weak_i64_release_monotonic:
; PPC64: # %bb.0:
; PPC64-NEXT: li r5, 1
; PPC64-NEXT: li r6, 0
; PPC64-NEXT: lwsync
; PPC64-NEXT: .LBB11_1:
; PPC64-NEXT: ldarx r4, 0, r3
; PPC64-NEXT: cmpd r6, r4
; PPC64-NEXT: bne cr0, .LBB11_4
; PPC64-NEXT: # %bb.2:
; PPC64-NEXT: stdcx. r5, 0, r3
; PPC64-NEXT: bne cr0, .LBB11_1
; PPC64-NEXT: # %bb.3:
; PPC64-NEXT: mr r3, r4
; PPC64-NEXT: blr
; PPC64-NEXT: .LBB11_4:
; PPC64-NEXT: stdcx. r4, 0, r3
; PPC64-NEXT: mr r3, r4
; PPC64-NEXT: blr
%val = cmpxchg weak i64* %mem, i64 0, i64 1 release monotonic
%loaded = extractvalue { i64, i1} %val, 0
ret i64 %loaded
}
; AtomicRMW
define i8 @add_i8_monotonic(i8* %mem, i8 %operand) {
; PPC32-LABEL: add_i8_monotonic:
; PPC32: # %bb.0:
; PPC32-NEXT: rlwinm r7, r3, 3, 27, 28
; PPC32-NEXT: li r6, 255
; PPC32-NEXT: rlwinm r5, r3, 0, 0, 29
; PPC32-NEXT: xori r3, r7, 24
; PPC32-NEXT: slw r4, r4, r3
; PPC32-NEXT: slw r6, r6, r3
; PPC32-NEXT: .LBB12_1:
; PPC32-NEXT: lwarx r7, 0, r5
; PPC32-NEXT: add r8, r4, r7
; PPC32-NEXT: andc r9, r7, r6
; PPC32-NEXT: and r8, r8, r6
; PPC32-NEXT: or r8, r8, r9
; PPC32-NEXT: stwcx. r8, 0, r5
; PPC32-NEXT: bne cr0, .LBB12_1
; PPC32-NEXT: # %bb.2:
; PPC32-NEXT: srw r3, r7, r3
; PPC32-NEXT: blr
;
; PPC64-LABEL: add_i8_monotonic:
; PPC64: # %bb.0:
; PPC64-NEXT: rlwinm r7, r3, 3, 27, 28
; PPC64-NEXT: li r6, 255
; PPC64-NEXT: rldicr r5, r3, 0, 61
; PPC64-NEXT: xori r3, r7, 24
; PPC64-NEXT: slw r4, r4, r3
; PPC64-NEXT: slw r6, r6, r3
; PPC64-NEXT: .LBB12_1:
; PPC64-NEXT: lwarx r7, 0, r5
; PPC64-NEXT: add r8, r4, r7
; PPC64-NEXT: andc r9, r7, r6
; PPC64-NEXT: and r8, r8, r6
; PPC64-NEXT: or r8, r8, r9
; PPC64-NEXT: stwcx. r8, 0, r5
; PPC64-NEXT: bne cr0, .LBB12_1
; PPC64-NEXT: # %bb.2:
; PPC64-NEXT: srw r3, r7, r3
; PPC64-NEXT: blr
%val = atomicrmw add i8* %mem, i8 %operand monotonic
ret i8 %val
}
define i16 @xor_i16_seq_cst(i16* %mem, i16 %operand) {
; PPC32-LABEL: xor_i16_seq_cst:
; PPC32: # %bb.0:
; PPC32-NEXT: li r6, 0
; PPC32-NEXT: rlwinm r7, r3, 3, 27, 27
; PPC32-NEXT: rlwinm r5, r3, 0, 0, 29
; PPC32-NEXT: ori r6, r6, 65535
; PPC32-NEXT: xori r3, r7, 16
; PPC32-NEXT: slw r4, r4, r3
; PPC32-NEXT: slw r6, r6, r3
; PPC32-NEXT: sync
; PPC32-NEXT: .LBB13_1:
; PPC32-NEXT: lwarx r7, 0, r5
; PPC32-NEXT: xor r8, r4, r7
; PPC32-NEXT: andc r9, r7, r6
; PPC32-NEXT: and r8, r8, r6
; PPC32-NEXT: or r8, r8, r9
; PPC32-NEXT: stwcx. r8, 0, r5
; PPC32-NEXT: bne cr0, .LBB13_1
; PPC32-NEXT: # %bb.2:
; PPC32-NEXT: srw r3, r7, r3
; PPC32-NEXT: lwsync
; PPC32-NEXT: blr
;
; PPC64-LABEL: xor_i16_seq_cst:
; PPC64: # %bb.0:
; PPC64-NEXT: li r6, 0
; PPC64-NEXT: rlwinm r7, r3, 3, 27, 27
; PPC64-NEXT: rldicr r5, r3, 0, 61
; PPC64-NEXT: ori r6, r6, 65535
; PPC64-NEXT: xori r3, r7, 16
; PPC64-NEXT: slw r4, r4, r3
; PPC64-NEXT: slw r6, r6, r3
; PPC64-NEXT: sync
; PPC64-NEXT: .LBB13_1:
; PPC64-NEXT: lwarx r7, 0, r5
; PPC64-NEXT: xor r8, r4, r7
; PPC64-NEXT: andc r9, r7, r6
; PPC64-NEXT: and r8, r8, r6
; PPC64-NEXT: or r8, r8, r9
; PPC64-NEXT: stwcx. r8, 0, r5
; PPC64-NEXT: bne cr0, .LBB13_1
; PPC64-NEXT: # %bb.2:
; PPC64-NEXT: srw r3, r7, r3
; PPC64-NEXT: lwsync
; PPC64-NEXT: blr
%val = atomicrmw xor i16* %mem, i16 %operand seq_cst
ret i16 %val
}
define i32 @xchg_i32_acq_rel(i32* %mem, i32 %operand) {
; CHECK-LABEL: xchg_i32_acq_rel:
; CHECK: # %bb.0:
; CHECK-NEXT: lwsync
; CHECK-NEXT: .LBB14_1:
; CHECK-NEXT: lwarx r5, 0, r3
; CHECK-NEXT: stwcx. r4, 0, r3
; CHECK-NEXT: bne cr0, .LBB14_1
; CHECK-NEXT: # %bb.2:
; CHECK-NEXT: mr r3, r5
; CHECK-NEXT: lwsync
; CHECK-NEXT: blr
%val = atomicrmw xchg i32* %mem, i32 %operand acq_rel
ret i32 %val
}
define i64 @and_i64_release(i64* %mem, i64 %operand) {
; PPC32-LABEL: and_i64_release:
; PPC32: # %bb.0:
; PPC32-NEXT: mflr r0
; PPC32-NEXT: stw r0, 4(r1)
; PPC32-NEXT: stwu r1, -16(r1)
; PPC32-NEXT: .cfi_def_cfa_offset 16
; PPC32-NEXT: .cfi_offset lr, 4
; PPC32-NEXT: li r7, 3
; PPC32-NEXT: bl __atomic_fetch_and_8
; PPC32-NEXT: lwz r0, 20(r1)
; PPC32-NEXT: addi r1, r1, 16
; PPC32-NEXT: mtlr r0
; PPC32-NEXT: blr
;
; PPC64-LABEL: and_i64_release:
; PPC64: # %bb.0:
; PPC64-NEXT: lwsync
; PPC64-NEXT: .LBB15_1:
; PPC64-NEXT: ldarx r5, 0, r3
; PPC64-NEXT: and r6, r4, r5
; PPC64-NEXT: stdcx. r6, 0, r3
; PPC64-NEXT: bne cr0, .LBB15_1
; PPC64-NEXT: # %bb.2:
; PPC64-NEXT: mr r3, r5
; PPC64-NEXT: blr
%val = atomicrmw and i64* %mem, i64 %operand release
ret i64 %val
}
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