llvm-6502/test/Transforms/IndVarSimplify/2011-10-27-lftrnull.ll
Andrew Trick 6f2dd7ebcf LFTR should avoid a type mismatch with null pointer IVs.
Fixes rdar://10359193 Indvar LinearFunctionTestReplace assertion


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143183 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28 03:45:11 +00:00

60 lines
2.3 KiB
LLVM

; RUN: opt < %s -indvars -S | FileCheck %s
; rdar://10359193: assert "IndVar type must match IVInit type"
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
target triple = "thumbv7-apple-darwin"
; CHECK: @test
; CHECK: if.end.i126:
; CHECK: %exitcond = icmp ne i8* %incdec.ptr.i, getelementptr (i8* null, i32 undef)
define void @test() nounwind {
entry:
br label %while.cond
while.cond:
br i1 undef, label %while.end, label %while.body
while.body: ; preds = %while.cond
br i1 undef, label %if.then165, label %while.cond
if.then165: ; preds = %while.body
br i1 undef, label %while.cond, label %for.body.lr.ph.i81
for.body.lr.ph.i81: ; preds = %if.then165
br label %for.body.i86
for.body.i86: ; preds = %for.end.i129, %for.body.lr.ph.i81
%cmp196.i = icmp ult i32 0, undef
br i1 %cmp196.i, label %for.body21.lr.ph.i, label %for.end.i129
for.body21.lr.ph.i: ; preds = %for.body.i86
br label %for.body21.i
for.body21.i:
%destYPixelPtr.010.i = phi i8* [ null, %for.body21.lr.ph.i ], [ %incdec.ptr.i, %if.end.i126 ]
%x.09.i = phi i32 [ 0, %for.body21.lr.ph.i ], [ %inc.i125, %if.end.i126 ]
br i1 undef, label %if.end.i126, label %if.else.i124
if.else.i124: ; preds = %for.body21.i
store i8 undef, i8* %destYPixelPtr.010.i, align 1
br label %if.end.i126
if.end.i126: ; preds = %if.else.i124, %for.body21.i
%incdec.ptr.i = getelementptr inbounds i8* %destYPixelPtr.010.i, i32 1
%inc.i125 = add i32 %x.09.i, 1
%cmp19.i = icmp ult i32 %inc.i125, undef
br i1 %cmp19.i, label %for.body21.i, label %for.end.i129
for.end.i129: ; preds = %if.end.i126, %for.body.i86
br i1 undef, label %for.body.i86, label %while.cond
while.end: ; preds = %while.cond
br label %bail
bail: ; preds = %while.end, %lor.lhs.false44, %lor.lhs.false41, %if.end29, %if.end
unreachable
return: ; preds = %lor.lhs.false20, %lor.lhs.false12, %lor.lhs.false, %entry
ret void
}