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