30 lines
1.0 KiB
LLVM
30 lines
1.0 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -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 i16*> @test_gep() {
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; CHECK-LABEL: @test_gep(
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; CHECK-NEXT: ret <2 x i16*> <i16* getelementptr inbounds ([1 x %rec8], [1 x %rec8]* @a, i32 0, i32 0, i32 0), i16* getelementptr inbounds ([1 x %rec8], [1 x %rec8]* @a, i32 0, i32 0, i32 0)>
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;
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%A = getelementptr [1 x %rec8], [1 x %rec8]* @a, <2 x i16> zeroinitializer, <2 x i64> zeroinitializer
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%B = bitcast <2 x %rec8*> %A to <2 x i16*>
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ret <2 x i16*> %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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