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4741c1e622
addSchedBarrierDeps() is supposed to add use operands to the ExitSU node. The current implementation adds uses for calls/barrier instruction and the MBB live-outs in all other cases. The use operands of conditional jump instructions were missed. Also added code to macrofusion to set the latencies between nodes to zero to avoid problems with the fusing nodes lingering around in the pending list now. Differential Revision: https://reviews.llvm.org/D25140 llvm-svn: 286544
187 lines
4.4 KiB
LLVM
187 lines
4.4 KiB
LLVM
;RUN: llc -march=sparc < %s -verify-machineinstrs | FileCheck %s
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;RUN: llc -march=sparc -O0 < %s -verify-machineinstrs | FileCheck %s -check-prefix=UNOPT
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target triple = "sparc-unknown-linux-gnu"
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define i32 @test(i32 %a) nounwind {
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entry:
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; CHECK: test
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; CHECK: call bar
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; CHECK-NOT: nop
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; CHECK: ret
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; CHECK-NEXT: restore
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%0 = tail call i32 @bar(i32 %a) nounwind
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ret i32 %0
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}
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define i32 @test_jmpl(i32 (i32, i32)* nocapture %f, i32 %a, i32 %b) nounwind {
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entry:
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; CHECK: test_jmpl
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; CHECK: call
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; CHECK-NOT: nop
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; CHECK: ret
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; CHECK-NEXT: restore
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%0 = tail call i32 %f(i32 %a, i32 %b) nounwind
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ret i32 %0
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}
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define i32 @test_loop(i32 %a, i32 %b) nounwind readnone {
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; CHECK: test_loop
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entry:
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%0 = icmp sgt i32 %b, 0
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br i1 %0, label %bb, label %bb5
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bb: ; preds = %entry, %bb
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%a_addr.18 = phi i32 [ %a_addr.0, %bb ], [ %a, %entry ]
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%1 = phi i32 [ %3, %bb ], [ 0, %entry ]
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%tmp9 = mul i32 %1, %b
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%2 = and i32 %1, 1
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%tmp = xor i32 %2, 1
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%.pn = shl i32 %tmp9, %tmp
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%a_addr.0 = add i32 %.pn, %a_addr.18
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%3 = add nsw i32 %1, 1
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%exitcond = icmp eq i32 %3, %b
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;CHECK: cmp
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;CHECK: bne
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;CHECK-NOT: nop
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br i1 %exitcond, label %bb5, label %bb
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bb5: ; preds = %bb, %entry
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%a_addr.1.lcssa = phi i32 [ %a, %entry ], [ %a_addr.0, %bb ]
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;CHECK: retl
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;CHECK-NOT: restore
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ret i32 %a_addr.1.lcssa
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}
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define i32 @test_inlineasm(i32 %a) nounwind {
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entry:
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;CHECK-LABEL: test_inlineasm:
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;CHECK: cmp
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;CHECK: sethi
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;CHECK: !NO_APP
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;CHECK-NEXT: ble
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;CHECK-NEXT: mov
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tail call void asm sideeffect "sethi 0, %g0", ""() nounwind
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%0 = icmp slt i32 %a, 0
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br i1 %0, label %bb, label %bb1
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bb: ; preds = %entry
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%1 = tail call i32 (...) @foo(i32 %a) nounwind
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ret i32 %1
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bb1: ; preds = %entry
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%2 = tail call i32 @bar(i32 %a) nounwind
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ret i32 %2
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}
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declare i32 @foo(...)
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declare i32 @bar(i32)
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define i32 @test_implicit_def() nounwind {
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entry:
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;UNOPT-LABEL: test_implicit_def:
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;UNOPT: call func
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;UNOPT-NEXT: nop
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%0 = tail call i32 @func(i32* undef) nounwind
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ret i32 0
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}
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define i32 @prevent_o7_in_call_delay_slot(i32 %i0) {
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entry:
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;CHECK-LABEL: prevent_o7_in_call_delay_slot:
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;CHECK: add %i0, 2, %o5
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;CHECK: add %i0, 3, %o7
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;CHECK: add %o5, %o7, %o0
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;CHECK: call bar
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;CHECK-NEXT: nop
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%0 = add nsw i32 %i0, 2
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%1 = add nsw i32 %i0, 3
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tail call void asm sideeffect "", "r,r,~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o6},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7}"(i32 %0, i32 %1)
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%2 = add nsw i32 %0, %1
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%3 = tail call i32 @bar(i32 %2)
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ret i32 %3
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}
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declare i32 @func(i32*)
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define i32 @restore_add(i32 %a, i32 %b) {
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entry:
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;CHECK-LABEL: restore_add:
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;CHECK: ret
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;CHECK: restore %o0, %i1, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = add nsw i32 %0, %b
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ret i32 %1
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}
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define i32 @restore_add_imm(i32 %a) {
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entry:
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;CHECK-LABEL: restore_add_imm:
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;CHECK: ret
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;CHECK: restore %o0, 20, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = add nsw i32 %0, 20
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ret i32 %1
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}
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define i32 @restore_or(i32 %a) {
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entry:
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;CHECK-LABEL: restore_or:
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;CHECK: ret
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;CHECK: restore %g0, %o0, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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ret i32 %0
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}
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define i32 @restore_or_imm(i32 %a) {
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entry:
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;CHECK-LABEL: restore_or_imm:
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;CHECK: or %o0, 20, %i0
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;CHECK: ret
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;CHECK-NOT: restore %g0, %g0, %g0
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;CHECK: restore
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = or i32 %0, 20
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ret i32 %1
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}
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define i32 @restore_sethi(i32 %a) {
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entry:
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;CHECK-LABEL: restore_sethi:
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;CHECK-NOT: sethi 3
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;CHECK: restore %g0, 3072, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = icmp ne i32 %0, 0
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%2 = select i1 %1, i32 3072, i32 0
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ret i32 %2
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}
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define i32 @restore_sethi_3bit(i32 %a) {
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entry:
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;CHECK-LABEL: restore_sethi_3bit:
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;CHECK: sethi 6
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;CHECK-NOT: restore %g0, 6144, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = icmp ne i32 %0, 0
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%2 = select i1 %1, i32 6144, i32 0
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ret i32 %2
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}
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define i32 @restore_sethi_large(i32 %a) {
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entry:
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;CHECK-LABEL: restore_sethi_large:
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;CHECK: sethi 4000, %i0
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;CHECK-NOT: restore %g0, %g0, %g0
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;CHECK: restore
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = icmp ne i32 %0, 0
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%2 = select i1 %1, i32 4096000, i32 0
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ret i32 %2
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}
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