derek.holloway
7502bf64a4
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118 lines
4.8 KiB
LLVM
118 lines
4.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=memcpyopt,dce -S -verify-memoryssa | FileCheck %s
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; Negative test
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; Check this test is not transformed into memset, or cause a compiler warning
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; warning: Compiler has made implicit assumption that TypeSize is not scalable. This may or may not lead to broken code.
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define void @foo(ptr %p) {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: store <vscale x 16 x i8> zeroinitializer, ptr [[P:%.*]], align 16
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr <vscale x 16 x i8>, ptr [[P]], i64 1
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; CHECK-NEXT: store <vscale x 16 x i8> zeroinitializer, ptr [[TMP1]], align 16
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; CHECK-NEXT: ret void
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;
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store <vscale x 16 x i8> zeroinitializer, ptr %p
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%tmp1 = getelementptr <vscale x 16 x i8>, ptr %p, i64 1
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store <vscale x 16 x i8> zeroinitializer, ptr %tmp1
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ret void
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}
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; Test the compiler does not crash on a store of a scalable aggregate type.
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define void @test_no_crash_scalable_agg(ptr %p) {
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; CHECK-LABEL: @test_no_crash_scalable_agg(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: store { <vscale x 16 x i1>, <vscale x 16 x i1> } zeroinitializer, ptr [[P:%.*]], align 2
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; CHECK-NEXT: ret void
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;
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entry:
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store { <vscale x 16 x i1>, <vscale x 16 x i1> } zeroinitializer, ptr %p, align 2
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ret void
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}
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; Positive test
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define void @memset_vscale_index_zero(ptr %p, i8 %z) {
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; CHECK-LABEL: @memset_vscale_index_zero(
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[P:%.*]], i8 [[Z:%.*]], i64 17, i1 false)
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; CHECK-NEXT: ret void
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;
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store i8 %z, ptr %p
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%tmp1 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 1
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store i8 %z, ptr %tmp1
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%tmp2 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 2
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store i8 %z, ptr %tmp2
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%tmp3 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 3
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store i8 %z, ptr %tmp3
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%tmp4 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 4
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store i8 %z, ptr %tmp4
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%tmp5 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 5
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store i8 %z, ptr %tmp5
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%tmp6 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 6
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store i8 %z, ptr %tmp6
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%tmp7 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 7
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store i8 %z, ptr %tmp7
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%tmp8 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 8
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store i8 %z, ptr %tmp8
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%tmp9 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 9
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store i8 %z, ptr %tmp9
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%tmp10 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 10
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store i8 %z, ptr %tmp10
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%tmp11 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 11
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store i8 %z, ptr %tmp11
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%tmp12 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 12
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store i8 %z, ptr %tmp12
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%tmp13 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 13
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store i8 %z, ptr %tmp13
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%tmp14 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 14
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store i8 %z, ptr %tmp14
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%tmp15 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 15
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store i8 %z, ptr %tmp15
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%tmp16 = getelementptr <vscale x 16 x i8>, ptr %p, i32 0, i32 16
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store i8 %z, ptr %tmp16
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ret void
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}
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define void @memset_vscale_index_nonzero(ptr %p, i8 %z) {
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; CHECK-LABEL: @memset_vscale_index_nonzero(
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; CHECK-NEXT: [[TMP0:%.*]] = getelementptr <vscale x 16 x i8>, ptr [[P:%.*]], i32 1, i32 0
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP0]], i8 [[Z:%.*]], i64 17, i1 false)
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; CHECK-NEXT: ret void
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;
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%tmp0 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 0
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store i8 %z, ptr %tmp0
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%tmp1 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 1
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store i8 %z, ptr %tmp1
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%tmp2 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 2
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store i8 %z, ptr %tmp2
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%tmp3 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 3
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store i8 %z, ptr %tmp3
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%tmp4 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 4
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store i8 %z, ptr %tmp4
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%tmp5 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 5
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store i8 %z, ptr %tmp5
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%tmp6 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 6
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store i8 %z, ptr %tmp6
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%tmp7 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 7
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store i8 %z, ptr %tmp7
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%tmp8 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 8
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store i8 %z, ptr %tmp8
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%tmp9 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 9
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store i8 %z, ptr %tmp9
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%tmp10 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 10
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store i8 %z, ptr %tmp10
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%tmp11 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 11
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store i8 %z, ptr %tmp11
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%tmp12 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 12
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store i8 %z, ptr %tmp12
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%tmp13 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 13
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store i8 %z, ptr %tmp13
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%tmp14 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 14
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store i8 %z, ptr %tmp14
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%tmp15 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 15
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store i8 %z, ptr %tmp15
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%tmp16 = getelementptr <vscale x 16 x i8>, ptr %p, i32 1, i32 16
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store i8 %z, ptr %tmp16
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ret void
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}
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