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[indvars] Fix PR10946: SCEV cannot handle Vector IVs.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140026 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2011-09-19 17:54:39 +00:00
parent 9883acd2a6
commit 24f48ece52
2 changed files with 22 additions and 0 deletions
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16
test/Transforms/IndVarSimplify/2011-09-19-vectoriv.ll Normal file
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; RUN: opt < %s -indvars -S | FileCheck %s
; PR10946: Vector IVs are not SCEVable.
; CHECK-NOT: phi
define void @test() nounwind {
allocas:
br i1 undef, label %cif_done, label %for_loop398
cif_done: ; preds = %allocas
ret void
for_loop398: ; preds = %for_loop398, %allocas
%storemerge35 = phi <4 x i32> [ %storemerge, %for_loop398 ], [ undef, %allocas ]
%bincmp431 = icmp sge <4 x i32> %storemerge35, <i32 5, i32 5, i32 5, i32 5>
%storemerge = bitcast <4 x float> undef to <4 x i32>
br label %for_loop398
}