mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 16:02:52 +01:00
4562d3b919
preserves LCSSA form out of ScalarEvolution and into the LoopInfo class. Use it to check that SimplifyInstruction simplifications are not breaking LCSSA form. Fixes PR8622. llvm-svn: 119727
29 lines
909 B
LLVM
29 lines
909 B
LLVM
; RUN: opt < %s -loop-unswitch
|
|
; PR8622
|
|
@g_38 = external global i32, align 4
|
|
|
|
define void @func_67(i32 %p_68.coerce) nounwind {
|
|
entry:
|
|
br i1 true, label %for.end12, label %bb.nph
|
|
|
|
bb.nph: ; preds = %entry
|
|
%g_38.promoted = load i32* @g_38
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.cond, %bb.nph
|
|
%tobool.i = icmp eq i32 %p_68.coerce, 1
|
|
%xor4.i = xor i32 %p_68.coerce, 1
|
|
%call1 = select i1 %tobool.i, i32 0, i32 %xor4.i
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.body
|
|
br i1 true, label %for.cond.for.end12_crit_edge, label %for.body
|
|
|
|
for.cond.for.end12_crit_edge: ; preds = %for.cond
|
|
store i32 %call1, i32* @g_38
|
|
br label %for.end12
|
|
|
|
for.end12: ; preds = %for.cond.for.end12_crit_edge, %entry
|
|
ret void
|
|
}
|