45 lines
1.3 KiB
LLVM
45 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -verify-machineinstrs -O2 < %s | FileCheck %s
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;; https://bugs.llvm.org/PR47468
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;; PHI elimination should place copies BEFORE the inline asm, not
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;; after, even if the inline-asm uses as an input the same value as
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;; the PHI.
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declare void @foo(i8*)
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define void @test1(i8* %arg, i8** %mem) nounwind {
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; CHECK-LABEL: test1:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushq %r14
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; CHECK-NEXT: pushq %rbx
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: movq %rsi, %r14
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; CHECK-NEXT: .Ltmp0: # Block address taken
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; CHECK-NEXT: .LBB0_1: # %loop
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; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: movq (%r14), %rbx
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; CHECK-NEXT: callq foo
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; CHECK-NEXT: movq %rbx, %rdi
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; CHECK-NEXT: #APP
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: # %bb.2: # %end
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; CHECK-NEXT: addq $8, %rsp
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; CHECK-NEXT: popq %rbx
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; CHECK-NEXT: popq %r14
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; CHECK-NEXT: retq
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entry:
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br label %loop
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loop:
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%a = phi i8* [ %arg, %entry ], [ %b, %loop ]
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%b = load i8*, i8** %mem, align 8
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call void @foo(i8* %a)
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callbr void asm sideeffect "", "*m,X"(i8* %b, i8* blockaddress(@test1, %loop))
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to label %end [label %loop]
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end:
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ret void
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}
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