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
30 lines
879 B
LLVM
30 lines
879 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instsimplify -S -o - | FileCheck %s
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; Testcase that verify that we don't get a faulty bitcast that cast between
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; different sizes.
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%rec8 = type { i16 }
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@a = global [1 x %rec8] zeroinitializer
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define <2 x ptr> @test_gep() {
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; CHECK-LABEL: @test_gep(
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; CHECK-NEXT: ret <2 x ptr> <ptr @a, ptr @a>
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;
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%A = getelementptr [1 x %rec8], ptr @a, <2 x i16> zeroinitializer, <2 x i64> zeroinitializer
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%B = bitcast <2 x ptr> %A to <2 x ptr>
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ret <2 x ptr> %B
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}
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; Testcase that verify the cast-of-cast when the outer/second cast is to a
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; vector type.
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define <4 x i16> @test_mmx_const() {
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; CHECK-LABEL: @test_mmx_const(
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; CHECK-NEXT: ret <4 x i16> zeroinitializer
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;
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%A = bitcast <2 x i32> zeroinitializer to x86_mmx
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%B = bitcast x86_mmx %A to <4 x i16>
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ret <4 x i16> %B
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}
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