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llvm-6502/test/Transforms/IndVarSimplify/2012-10-19-congruent-constant.ll
Benjamin Kramer 239fd44f7a SCEVExpander: Don't crash when trying to merge two constant phis.
Just constant fold them so they can't cause any trouble. Fixes PR12627.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166286 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19 16:37:30 +00:00

28 lines
806 B
LLVM

; RUN: opt -S -indvars < %s | FileCheck %s
; PR12627
define void @test1(i32 %x) nounwind uwtable ssp {
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
%phi1 = phi i1 [ false, %entry ], [ %cmpa, %for.body ]
%phi2 = phi i1 [ false, %entry ], [ %cmpb, %for.body ]
%i.07 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
tail call void @aux(i1 %phi1, i1 %phi2) nounwind
%cmpa = icmp sgt i32 %i.07, 200
%cmpb = icmp sgt i32 %i.07, 100
%inc = add nsw i32 %i.07, 1
%exitcond = icmp eq i32 %inc, 100
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
; CHECK: @test1
; CHECK-NOT: phi i1
; CHECK: call void @aux(i1 false, i1 false)
}
declare void @aux(i1, i1)