forked from OSchip/llvm-project
45 lines
1.1 KiB
LLVM
45 lines
1.1 KiB
LLVM
; RUN: opt -S -passes=spec-phis %s
|
|
|
|
; This testcase crashes during the speculate around PHIs pass. The pass however
|
|
; results in no changes.
|
|
|
|
define i32 @test1() {
|
|
entry:
|
|
callbr void asm sideeffect "", "X,X,~{dirflag},~{fpsr},~{flags}"(i8* blockaddress(@test1, %return), i8* blockaddress(@test1, %f))
|
|
to label %asm.fallthrough [label %return, label %f]
|
|
|
|
asm.fallthrough:
|
|
br label %return
|
|
|
|
f:
|
|
br label %return
|
|
|
|
return:
|
|
%retval.0 = phi i32 [ 0, %f ], [ 1, %asm.fallthrough ], [ 1, %entry ]
|
|
ret i32 %retval.0
|
|
}
|
|
|
|
define void @test2() {
|
|
entry:
|
|
br label %tailrecurse
|
|
|
|
tailrecurse:
|
|
%call = tail call i32 @test3()
|
|
%tobool1 = icmp eq i32 %call, 0
|
|
callbr void asm sideeffect "", "X,X,~{dirflag},~{fpsr},~{flags}"(i8* blockaddress(@test2, %test1.exit), i8* blockaddress(@test2, %f.i))
|
|
to label %if.end6 [label %test1.exit, label %f.i]
|
|
|
|
f.i:
|
|
br label %test1.exit
|
|
|
|
test1.exit:
|
|
%retval.0.i = phi i1 [ false, %f.i ], [ true, %tailrecurse ]
|
|
%brmerge = or i1 %tobool1, %retval.0.i
|
|
br i1 %brmerge, label %if.end6, label %tailrecurse
|
|
|
|
if.end6:
|
|
ret void
|
|
}
|
|
|
|
declare i32 @test3()
|