forked from OSchip/llvm-project
63 lines
1.7 KiB
LLVM
63 lines
1.7 KiB
LLVM
; RUN: opt < %s -correlated-propagation
|
|
|
|
; PR8161
|
|
define void @test1() nounwind ssp {
|
|
entry:
|
|
br label %for.end
|
|
|
|
for.cond.us.us: ; preds = %for.cond.us.us
|
|
%cmp6.i.us.us = icmp sgt i32 1, 0
|
|
%lor.ext.i.us.us = zext i1 %cmp6.i.us.us to i32
|
|
%lor.ext.add.i.us.us = select i1 %cmp6.i.us.us, i32 %lor.ext.i.us.us, i32 undef
|
|
%conv.i.us.us = trunc i32 %lor.ext.add.i.us.us to i16
|
|
%sext.us.us = shl i16 %conv.i.us.us, 8
|
|
%conv6.us.us = ashr i16 %sext.us.us, 8
|
|
%and.us.us = and i16 %conv6.us.us, %and.us.us
|
|
br i1 false, label %for.end, label %for.cond.us.us
|
|
|
|
for.end: ; preds = %for.cond.us, %for.cond.us.us, %entry
|
|
ret void
|
|
}
|
|
|
|
; PR 8790
|
|
define void @test2() nounwind ssp {
|
|
entry:
|
|
br label %func_29.exit
|
|
|
|
sdf.exit.i:
|
|
%l_44.1.mux.i = select i1 %tobool5.not.i, i8 %l_44.1.mux.i, i8 1
|
|
br label %srf.exit.i
|
|
|
|
srf.exit.i:
|
|
%tobool5.not.i = icmp ne i8 undef, 0
|
|
br i1 %tobool5.not.i, label %sdf.exit.i, label %func_29.exit
|
|
|
|
func_29.exit:
|
|
ret void
|
|
}
|
|
|
|
; PR13972
|
|
define void @test3() nounwind {
|
|
for.body:
|
|
br label %return
|
|
|
|
for.cond.i: ; preds = %if.else.i, %for.body.i
|
|
%e.2.i = phi i32 [ %e.2.i, %if.else.i ], [ -8, %for.body.i ]
|
|
br i1 undef, label %return, label %for.body.i
|
|
|
|
for.body.i: ; preds = %for.cond.i
|
|
switch i32 %e.2.i, label %for.cond3.i [
|
|
i32 -3, label %if.else.i
|
|
i32 0, label %for.cond.i
|
|
]
|
|
|
|
for.cond3.i: ; preds = %for.cond3.i, %for.body.i
|
|
br label %for.cond3.i
|
|
|
|
if.else.i: ; preds = %for.body.i
|
|
br label %for.cond.i
|
|
|
|
return: ; preds = %for.cond.i, %for.body
|
|
ret void
|
|
}
|