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3faf43fc66
those produced by clang for the inline asm bswap conversion. Modified from a patch by Chris Smowton. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194016 91177308-0d34-0410-b5e6-96231b3b80d8
33 lines
974 B
LLVM
33 lines
974 B
LLVM
; RUN: llc -march=x86-64 < %s | FileCheck %s
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; PR3701
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define i64 @t(i64* %arg) nounwind {
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br i1 true, label %1, label %5
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; <label>:1 ; preds = %0
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%2 = icmp eq i64* null, %arg ; <i1> [#uses=1]
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%3 = tail call i64* asm sideeffect "movl %fs:0,$0", "=r,~{dirflag},~{fpsr},~{flags}"() nounwind ; <%struct.thread*> [#uses=0]
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; CHECK: test
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; CHECK-NEXT: j
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br i1 %2, label %4, label %5
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; <label>:4 ; preds = %1
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ret i64 1
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; <label>:5 ; preds = %1
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ret i64 0
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}
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; Make sure that we translate this to the bswap intrinsic which lowers down without the
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; inline assembly.
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; CHECK-NOT: #APP
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define i32 @s(i32 %argc, i8** nocapture %argv) unnamed_addr nounwind {
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entry:
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%0 = trunc i32 %argc to i16
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%asmtmp = tail call i16 asm "rorw $$8, ${0:w}", "=r,0,~{fpsr},~{flags},~{cc}"(i16 %0) nounwind, !srcloc !0
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%1 = zext i16 %asmtmp to i32
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ret i32 %1
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}
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!0 = metadata !{i64 935930}
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