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-rw-r--r--lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp3
-rw-r--r--test/Transforms/InstCombine/bitcast.ll10
2 files changed, 12 insertions, 1 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
index 88e16e9..0a0727e 100644
--- a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
+++ b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
@@ -318,7 +318,8 @@ static Instruction *InstCombineLoadCast(InstCombiner &IC, LoadInst &LI,
SrcPTy->isVectorTy()) &&
// Do not allow turning this into a load of an integer, which is then
// casted to a pointer, this pessimizes pointer analysis a lot.
- (SrcPTy->isPointerTy() == LI.getType()->isPointerTy()) &&
+ (SrcPTy->isPtrOrPtrVectorTy() ==
+ LI.getType()->isPtrOrPtrVectorTy()) &&
IC.getDataLayout()->getTypeSizeInBits(SrcPTy) ==
IC.getDataLayout()->getTypeSizeInBits(DestPTy)) {
diff --git a/test/Transforms/InstCombine/bitcast.ll b/test/Transforms/InstCombine/bitcast.ll
index 4ef8790..c7a520b 100644
--- a/test/Transforms/InstCombine/bitcast.ll
+++ b/test/Transforms/InstCombine/bitcast.ll
@@ -144,3 +144,13 @@ define <2 x i16> @BitcastInsert(i32 %a) {
; CHECK-LABEL: @BitcastInsert(
; CHECK: bitcast i32 %a to <2 x i16>
}
+
+; PR17293
+define <2 x i64> @test7(<2 x i8*>* %arg) nounwind {
+ %cast = bitcast <2 x i8*>* %arg to <2 x i64>*
+ %load = load <2 x i64>* %cast, align 16
+ ret <2 x i64> %load
+; CHECK: @test7
+; CHECK: bitcast
+; CHECK: load
+}