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; REQUIRES: asserts
; RUN: opt -loop-rotate -licm %s -disable-output -debug-only=licm 2>&1 | FileCheck %s -check-prefix=LICM
; RUN: opt -loop-rotate -licm %s -S | FileCheck %s
; LICM-NOT: LICM sinking instruction: %.pre = load i8, i8* %arrayidx.phi.trans.insert
; CHECK-LABEL: @fn1
; CHECK-LABEL: entry:
; CHECK: br i1 true, label %[[END:.*]], label %[[PH:.*]]
; CHECK: [[PH]]:
; CHECK: br label %[[CRIT:.*]]
; CHECK: [[CRIT]]:
; CHECK: load i8
; CHECK: store i8
; CHECK: br i1 true, label %[[ENDCRIT:.*]], label %[[CRIT]]
; CHECK: [[ENDCRIT]]:
; CHECK-NOT: load i8
; CHECK: br label %[[END]]
target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-a:8:16-n32:64"
target triple = "s390x-unknown-linux-gnu"
define void @fn1() {
entry:
%g = alloca [9 x i8], align 1
br label %for.body
for.body: ; preds = %for.body.for.body_crit_edge, %entry
%0 = phi i64 [ 0, %entry ], [ %phitmp, %for.body.for.body_crit_edge ]
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body.for.body_crit_edge ]
%arrayidx = getelementptr inbounds [9 x i8], [9 x i8]* %g, i64 0, i64 %indvars.iv
store i8 2, i8* %arrayidx, align 1
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br i1 undef, label %for.end18, label %for.body.for.body_crit_edge
for.body.for.body_crit_edge: ; preds = %for.body
%arrayidx.phi.trans.insert = getelementptr inbounds [9 x i8], [9 x i8]* %g, i64 0, i64 %indvars.iv.next
%.pre = load i8, i8* %arrayidx.phi.trans.insert, align 1
%phitmp = zext i8 %.pre to i64
br label %for.body
for.end18: ; preds = %for.body
store i64 %0, i64* undef, align 8
ret void
}
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