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
37 lines
1.6 KiB
LLVM
37 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -memcpyopt -S < %s -verify-memoryssa | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128-ni:1"
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define void @illegal_memset(i64 addrspace(1)** %p) {
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; CHECK-LABEL: @illegal_memset(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[P1:%.*]] = bitcast i64 addrspace(1)** [[P:%.*]] to i8*
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[P1]], i8 0, i64 8, i1 false)
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr i64 addrspace(1)*, i64 addrspace(1)** [[P]], i64 1
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; CHECK-NEXT: store i64 addrspace(1)* null, i64 addrspace(1)** [[GEP]], align 8
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; CHECK-NEXT: ret void
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;
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entry:
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%p1 = bitcast i64 addrspace(1)** %p to i8*
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call void @llvm.memset.p0i8.i64(i8* %p1, i8 0, i64 8, i32 0, i1 false)
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%gep = getelementptr i64 addrspace(1)*, i64 addrspace(1)** %p, i64 1
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store i64 addrspace(1)* null, i64 addrspace(1)** %gep
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ret void
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}
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define void @illegal_memcpy(<2 x i8 addrspace(1)*>* noalias align 16 %a,
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; CHECK-LABEL: @illegal_memcpy(
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; CHECK-NEXT: [[VAL:%.*]] = load <2 x i8 addrspace(1)*>, <2 x i8 addrspace(1)*>* [[A:%.*]], align 16
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; CHECK-NEXT: store <2 x i8 addrspace(1)*> [[VAL]], <2 x i8 addrspace(1)*>* [[B:%.*]], align 16
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; CHECK-NEXT: ret void
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;
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<2 x i8 addrspace(1)*>* noalias align 16 %b) {
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%val = load <2 x i8 addrspace(1)*>, <2 x i8 addrspace(1)*>* %a, align 16
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store <2 x i8 addrspace(1)*> %val, <2 x i8 addrspace(1)*>* %b, align 16
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ret void
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}
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declare void @llvm.memset.p1i8.i64(i8 addrspace(1)*, i8, i64, i32, i1)
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declare void @llvm.memset.p0i8.i64(i8*, i8, i64, i32, i1)
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