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