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InstCombine: Fix and simplify the inttoptr side too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174438 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1322,19 +1322,14 @@ Instruction *InstCombiner::visitIntToPtr(IntToPtrInst &CI) {
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// If the source integer type is not the intptr_t type for this target, do a
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// If the source integer type is not the intptr_t type for this target, do a
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// trunc or zext to the intptr_t type, then inttoptr of it. This allows the
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// trunc or zext to the intptr_t type, then inttoptr of it. This allows the
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// cast to be exposed to other transforms.
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// cast to be exposed to other transforms.
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if (TD) {
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if (TD && CI.getOperand(0)->getType()->getScalarSizeInBits() !=
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if (CI.getOperand(0)->getType()->getScalarSizeInBits() >
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TD->getPointerSizeInBits()) {
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TD->getPointerSizeInBits()) {
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Type *Ty = TD->getIntPtrType(CI.getContext());
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Value *P = Builder->CreateTrunc(CI.getOperand(0),
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if (CI.getType()->isVectorTy()) // Handle vectors of pointers.
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TD->getIntPtrType(CI.getContext()));
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Ty = VectorType::get(Ty, CI.getType()->getVectorNumElements());
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return new IntToPtrInst(P, CI.getType());
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}
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Value *P = Builder->CreateZExtOrTrunc(CI.getOperand(0), Ty);
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if (CI.getOperand(0)->getType()->getScalarSizeInBits() <
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return new IntToPtrInst(P, CI.getType());
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TD->getPointerSizeInBits()) {
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Value *P = Builder->CreateZExt(CI.getOperand(0),
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TD->getIntPtrType(CI.getContext()));
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return new IntToPtrInst(P, CI.getType());
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}
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}
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}
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if (Instruction *I = commonCastTransforms(CI))
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if (Instruction *I = commonCastTransforms(CI))
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@ -42,3 +42,19 @@ define <4 x i128> @test5(<4 x i8*> %arg) nounwind {
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%p1 = ptrtoint <4 x i8*> %arg to <4 x i128>
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%p1 = ptrtoint <4 x i8*> %arg to <4 x i128>
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ret <4 x i128> %p1
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ret <4 x i128> %p1
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}
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}
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define <4 x i8*> @test6(<4 x i32> %arg) nounwind {
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; CHECK: @test6
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; CHECK: zext <4 x i32> %arg to <4 x i64>
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; CHECK: inttoptr <4 x i64> %1 to <4 x i8*>
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%p1 = inttoptr <4 x i32> %arg to <4 x i8*>
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ret <4 x i8*> %p1
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}
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define <4 x i8*> @test7(<4 x i128> %arg) nounwind {
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; CHECK: @test7
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; CHECK: trunc <4 x i128> %arg to <4 x i64>
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; CHECK: inttoptr <4 x i64> %1 to <4 x i8*>
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%p1 = inttoptr <4 x i128> %arg to <4 x i8*>
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ret <4 x i8*> %p1
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}
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