04b944e230
The only interesting test change is in @PR31262, where the following fold is now performed, while it previously was not: https://alive2.llvm.org/ce/z/a5Qmr6 llvm/test/Transforms/InstSimplify/ConstProp/gep.ll has not been updated, because there is a tradeoff between folding and inrange preservation there that we may want to discuss. Updates have been performed using: https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34
33 lines
1.3 KiB
LLVM
33 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
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; Test constant fold of constant expression GEP used by ptrtoint (the
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; "offsetof-like expression" case).
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; This used to hit an assert due to not supporting vectors in
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; llvm::ConstantFoldCastInstruction when handling ptrtoint.
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define <2 x i16> @test1() {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret <2 x i16> ptrtoint (<2 x ptr> getelementptr ([10 x i32], ptr null, <2 x i64> zeroinitializer, <2 x i64> <i64 5, i64 7>) to <2 x i16>)
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;
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entry:
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%gep = getelementptr inbounds [10 x i32], ptr null, i16 0, <2 x i16> <i16 5, i16 7>
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%vec = ptrtoint <2 x ptr> %gep to <2 x i16>
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ret <2 x i16> %vec
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}
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; Test constant fold of constant expression GEP used by ptrtoint (the
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; "sizeof-like expression" case).
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; This used to hit an assert due to not supporting vectors in
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; llvm::ConstantFoldCastInstruction when handling ptrtoint.
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define <2 x i16> @test2() {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret <2 x i16> ptrtoint (<2 x ptr> getelementptr (i32, ptr null, <2 x i64> <i64 5, i64 7>) to <2 x i16>)
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;
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entry:
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%gep = getelementptr i32, ptr null, <2 x i16> <i16 5, i16 7>
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%vec = ptrtoint <2 x ptr> %gep to <2 x i16>
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ret <2 x i16> %vec
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}
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