bec-cmp.ll
1.59 KB
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; RUN: opt -S -indvars < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
; Function Attrs: nounwind
define void @foo(i32* nocapture %a, i32* nocapture readonly %b, i32 signext %n) #0 {
entry:
; CHECK-LABEL: @foo
%cmp.10 = icmp sgt i32 %n, 0
br i1 %cmp.10, label %for.body.lr.ph, label %for.cond.cleanup
for.body.lr.ph: ; preds = %entry
br label %for.body
for.cond.for.cond.cleanup_crit_edge: ; preds = %for.inc
br label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond.for.cond.cleanup_crit_edge, %entry
ret void
for.body: ; preds = %for.body.lr.ph, %for.inc
%i.011 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ]
%cmp1 = icmp sgt i32 %i.011, %n
br i1 %cmp1, label %if.then, label %for.inc
; CHECK-NOT: br i1 %cmp1, label %if.then, label %for.inc
; CHECK: br i1 false, label %if.then, label %for.inc
if.then: ; preds = %for.body
%idxprom = sext i32 %i.011 to i64
%arrayidx = getelementptr inbounds i32, i32* %b, i64 %idxprom
%0 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %0, 1
%arrayidx3 = getelementptr inbounds i32, i32* %a, i64 %idxprom
store i32 %add, i32* %arrayidx3, align 4
br label %for.inc
for.inc: ; preds = %for.body, %if.then
%inc = add nsw i32 %i.011, 1
%cmp = icmp slt i32 %inc, %n
br i1 %cmp, label %for.body, label %for.cond.for.cond.cleanup_crit_edge
}
attributes #0 = { nounwind }