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Fix a crash in ValueTracking on vectors of pointers.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170240 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem 2012-12-14 20:43:49 +00:00
parent d3eb4f46f0
commit fd360c3e24
2 changed files with 11 additions and 1 deletions
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2
lib/Analysis/ValueTracking.cpp
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@ -953,7 +953,7 @@ bool llvm::isKnownNonZero(Value *V, const DataLayout *TD, unsigned Depth) {
return true;
}
unsigned BitWidth = getBitWidth(V->getType(), TD);
unsigned BitWidth = getBitWidth(V->getType()->getScalarType(), TD);
// X | Y != 0 if X != 0 or Y != 0.
Value *X = 0, *Y = 0;

10
test/Transforms/InstCombine/2012-12-14-simp-vgep.ll Normal file
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@ -0,0 +1,10 @@
; RUN: opt < %s -instcombine -S
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
define <4 x i32> @foo(<4 x i32*>* %in) {
%t17 = load <4 x i32*>* %in, align 8
%t18 = icmp eq <4 x i32*> %t17, zeroinitializer
%t19 = zext <4 x i1> %t18 to <4 x i32>
ret <4 x i32> %t19
}