mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-26 21:32:10 +00:00
86e8a700f5
this case involve a select that simplifies to itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121817 91177308-0d34-0410-b5e6-96231b3b80d8
38 lines
1.0 KiB
LLVM
38 lines
1.0 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
|
|
}
|