blob: 477b4deba82098a547cb7e013ea835deae1840fe [file] [log] [blame]
; RUN: llc < %s -mtriple=i386-apple-macosx -mcpu=core2 -mattr=+sse | FileCheck %s
; PR11940: Do not optimize away movb %al, %ch
%struct.APInt = type { i64* }
declare noalias i8* @calloc(i32, i32) nounwind
define void @bug(%struct.APInt* noalias nocapture sret %agg.result, %struct.APInt* nocapture %this, i32 %rotateAmt) nounwind align 2 {
entry:
; CHECK: bug:
%call = tail call i8* @calloc(i32 1, i32 32)
%call.i = tail call i8* @calloc(i32 1, i32 32) nounwind
%0 = bitcast i8* %call.i to i64*
%rem.i = and i32 %rotateAmt, 63
%div.i = lshr i32 %rotateAmt, 6
%cmp.i = icmp eq i32 %rem.i, 0
br i1 %cmp.i, label %for.cond.preheader.i, label %if.end.i
for.cond.preheader.i: ; preds = %entry
%sub.i = sub i32 4, %div.i
%cmp23.i = icmp eq i32 %div.i, 4
br i1 %cmp23.i, label %for.body9.lr.ph.i, label %for.body.lr.ph.i
for.body.lr.ph.i: ; preds = %for.cond.preheader.i
%pVal.i = getelementptr inbounds %struct.APInt* %this, i32 0, i32 0
%.pre5.i = load i64** %pVal.i, align 4
br label %for.body.i
for.body.i: ; preds = %for.body.i, %for.body.lr.ph.i
%i.04.i = phi i32 [ 0, %for.body.lr.ph.i ], [ %inc.i, %for.body.i ]
%add.i = add i32 %i.04.i, %div.i
%arrayidx.i = getelementptr inbounds i64* %.pre5.i, i32 %add.i
%1 = load i64* %arrayidx.i, align 4
%arrayidx3.i = getelementptr inbounds i64* %0, i32 %i.04.i
store i64 %1, i64* %arrayidx3.i, align 4
%inc.i = add i32 %i.04.i, 1
%cmp2.i = icmp ult i32 %inc.i, %sub.i
br i1 %cmp2.i, label %for.body.i, label %if.end.i
if.end.i: ; preds = %for.body.i, %entry
%cmp81.i = icmp eq i32 %div.i, 3
br i1 %cmp81.i, label %_ZNK5APInt4lshrEj.exit, label %for.body9.lr.ph.i
for.body9.lr.ph.i: ; preds = %if.end.i, %for.cond.preheader.i
%sub58.i = sub i32 3, %div.i
%pVal11.i = getelementptr inbounds %struct.APInt* %this, i32 0, i32 0
%sh_prom.i = zext i32 %rem.i to i64
%sub17.i = sub i32 64, %rem.i
%sh_prom18.i = zext i32 %sub17.i to i64
%.pre.i = load i64** %pVal11.i, align 4
br label %for.body9.i
for.body9.i: ; preds = %for.body9.i, %for.body9.lr.ph.i
; CHECK: %for.body9.i
; CHECK: movb
; CHECK: shrdl
%i6.02.i = phi i32 [ 0, %for.body9.lr.ph.i ], [ %inc21.i, %for.body9.i ]
%add10.i = add i32 %i6.02.i, %div.i
%arrayidx12.i = getelementptr inbounds i64* %.pre.i, i32 %add10.i
%2 = load i64* %arrayidx12.i, align 4
%shr.i = lshr i64 %2, %sh_prom.i
%add14.i = add i32 %add10.i, 1
%arrayidx16.i = getelementptr inbounds i64* %.pre.i, i32 %add14.i
%3 = load i64* %arrayidx16.i, align 4
%shl.i = shl i64 %3, %sh_prom18.i
%or.i = or i64 %shl.i, %shr.i
%arrayidx19.i = getelementptr inbounds i64* %0, i32 %i6.02.i
store i64 %or.i, i64* %arrayidx19.i, align 4
%inc21.i = add i32 %i6.02.i, 1
%cmp8.i = icmp ult i32 %inc21.i, %sub58.i
br i1 %cmp8.i, label %for.body9.i, label %_ZNK5APInt4lshrEj.exit
_ZNK5APInt4lshrEj.exit: ; preds = %for.body9.i, %if.end.i
%call.i1 = tail call i8* @calloc(i32 1, i32 32) nounwind
%4 = getelementptr inbounds %struct.APInt* %agg.result, i32 0, i32 0
store i64* %0, i64** %4, align 4
ret void
}