56 lines
1.8 KiB
LLVM
56 lines
1.8 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s --data-layout "e" -dse -enable-dse-partial-store-merging=true -S | FileCheck %s
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; RUN: opt < %s --data-layout "E" -dse -enable-dse-partial-store-merging=true -S | FileCheck %s
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; This test used to hit an assertion (see PR41949).
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;
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; Better safe than sorry, do not assume anything about the padding for the
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; i28 store that has 32 bits as store size.
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define void @test1(i32* %p) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[A:%.*]] = alloca i32
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; CHECK-NEXT: [[B:%.*]] = bitcast i32* [[A]] to i28*
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; CHECK-NEXT: [[C:%.*]] = bitcast i32* [[A]] to { i16, i16 }*
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; CHECK-NEXT: [[C1:%.*]] = getelementptr inbounds { i16, i16 }, { i16, i16 }* [[C]], i32 0, i32 1
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; CHECK-NEXT: store i28 10, i28* [[B]]
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; CHECK-NEXT: store i16 20, i16* [[C1]]
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; CHECK-NEXT: call void @test1(i32* [[A]])
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; CHECK-NEXT: ret void
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;
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%a = alloca i32
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%b = bitcast i32* %a to i28*
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%c = bitcast i32* %a to { i16, i16 }*
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%c1 = getelementptr inbounds { i16, i16 }, { i16, i16 }* %c, i32 0, i32 1
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store i28 10, i28* %b
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store i16 20, i16* %c1
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call void @test1(i32* %a)
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ret void
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}
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; This test used to mis-compile (see PR41949).
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;
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; Better safe than sorry, do not assume anything about the padding for the
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; i12 store that has 16 bits as store size.
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define void @test2(i32* %p) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[U:%.*]] = alloca i32
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; CHECK-NEXT: [[A:%.*]] = bitcast i32* [[U]] to i32*
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; CHECK-NEXT: [[B:%.*]] = bitcast i32* [[U]] to i12*
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; CHECK-NEXT: store i32 -1, i32* [[A]]
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; CHECK-NEXT: store i12 20, i12* [[B]]
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; CHECK-NEXT: call void @test2(i32* [[U]])
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; CHECK-NEXT: ret void
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;
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%u = alloca i32
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%a = bitcast i32* %u to i32*
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%b = bitcast i32* %u to i12*
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store i32 -1, i32* %a
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store i12 20, i12* %b
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call void @test2(i32* %u)
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ret void
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}
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