88003cea1c
The MemorySSA-based implementation has been enabled for a few months (since D94376). This patch drops the old MDA-based implementation entirely. I've kept this to only the basic cleanup of dropping various conditions -- the code could be further cleaned up now that there is only one implementation. Differential Revision: https://reviews.llvm.org/D102113
39 lines
1.8 KiB
LLVM
39 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -memcpyopt -S -verify-memoryssa | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @test(i8* %src, i64 %size) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: [[TMP:%.*]] = alloca i8, i64 [[SIZE:%.*]], align 1
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; CHECK-NEXT: [[DST:%.*]] = alloca i8, i64 [[SIZE]], align 1
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 [[TMP]], i8* align 8 [[SRC:%.*]], i64 [[SIZE]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 [[DST]], i8* align 8 [[SRC]], i64 [[SIZE]], i1 false)
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; CHECK-NEXT: ret void
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;
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%tmp = alloca i8, i64 %size
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%dst = alloca i8, i64 %size
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %tmp, i8* align 8 %src, i64 %size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %dst, i8* align 8 %tmp, i64 %size, i1 false)
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ret void
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}
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; Differing sizes, so left as it is.
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define void @negative_test(i8* %src, i64 %size1, i64 %size2) {
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; CHECK-LABEL: @negative_test(
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; CHECK-NEXT: [[TMP:%.*]] = alloca i8, i64 [[SIZE1:%.*]], align 1
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; CHECK-NEXT: [[DST:%.*]] = alloca i8, i64 [[SIZE2:%.*]], align 1
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 [[TMP]], i8* align 8 [[SRC:%.*]], i64 [[SIZE1]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 [[DST]], i8* align 8 [[TMP]], i64 [[SIZE2]], i1 false)
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; CHECK-NEXT: ret void
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;
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%tmp = alloca i8, i64 %size1
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%dst = alloca i8, i64 %size2
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %tmp, i8* align 8 %src, i64 %size1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %dst, i8* align 8 %tmp, i64 %size2, i1 false)
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ret void
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i1)
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