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be02a90de1
- Add RTM code generation support throught 3 X86 intrinsics: xbegin()/xend() to start/end a transaction region, and xabort() to abort a tranaction region git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167573 91177308-0d34-0410-b5e6-96231b3b80d8
31 lines
689 B
LLVM
31 lines
689 B
LLVM
; RUN: llc < %s -mattr=+rtm -mtriple=x86_64-unknown-unknown | FileCheck %s
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declare i32 @llvm.x86.xbegin() nounwind
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declare void @llvm.x86.xend() nounwind
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declare void @llvm.x86.xabort(i8) noreturn nounwind
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define i32 @test_xbegin() nounwind uwtable {
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entry:
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%0 = tail call i32 @llvm.x86.xbegin() nounwind
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ret i32 %0
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; CHECK: test_xbegin
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; CHECK: xbegin [[LABEL:.*BB.*]]
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; CHECK: [[LABEL]]:
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}
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define void @test_xend() nounwind uwtable {
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entry:
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tail call void @llvm.x86.xend() nounwind
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ret void
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; CHECK: test_xend
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; CHECK: xend
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}
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define void @test_xabort() nounwind uwtable {
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entry:
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tail call void @llvm.x86.xabort(i8 2)
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unreachable
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; CHECK: test_xabort
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; CHECK: xabort $2
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}
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