forked from OSchip/llvm-project
66 lines
2.7 KiB
LLVM
66 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -memcpyopt -opaque-pointers < %s | FileCheck %s --check-prefixes=CHECK,LIBCALLS
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; RUN: opt -S -memcpyopt -mtriple=amdgcn-- -opaque-pointers < %s | FileCheck %s --check-prefixes=CHECK,NO-LIBCALLS
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; RUN: opt -S -memcpyopt -mtriple=amdgcn-- -enable-memcpyopt-without-libcalls -opaque-pointers < %s \
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; RUN: | FileCheck %s --check-prefixes=CHECK,LIBCALLS
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; REQUIRES: amdgpu-registered-target
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define void @dont_create_memset(ptr %p) {
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; LIBCALLS-LABEL: @dont_create_memset(
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; LIBCALLS-NEXT: [[P1:%.*]] = getelementptr i32, ptr [[P:%.*]], i64 1
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; LIBCALLS-NEXT: [[P2:%.*]] = getelementptr i32, ptr [[P]], i64 2
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; LIBCALLS-NEXT: [[P3:%.*]] = getelementptr i32, ptr [[P]], i64 3
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; LIBCALLS-NEXT: call void @llvm.memset.p0.i64(ptr align 4 [[P]], i8 0, i64 16, i1 false)
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; LIBCALLS-NEXT: ret void
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;
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; NO-LIBCALLS-LABEL: @dont_create_memset(
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; NO-LIBCALLS-NEXT: store i32 0, ptr [[P:%.*]], align 4
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; NO-LIBCALLS-NEXT: [[P1:%.*]] = getelementptr i32, ptr [[P]], i64 1
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; NO-LIBCALLS-NEXT: store i32 0, ptr [[P1]], align 4
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; NO-LIBCALLS-NEXT: [[P2:%.*]] = getelementptr i32, ptr [[P]], i64 2
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; NO-LIBCALLS-NEXT: store i32 0, ptr [[P2]], align 4
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; NO-LIBCALLS-NEXT: [[P3:%.*]] = getelementptr i32, ptr [[P]], i64 3
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; NO-LIBCALLS-NEXT: store i32 0, ptr [[P3]], align 4
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; NO-LIBCALLS-NEXT: ret void
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;
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store i32 0, ptr %p
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%p1 = getelementptr i32, ptr %p, i64 1
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store i32 0, ptr %p1
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%p2 = getelementptr i32, ptr %p, i64 2
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store i32 0, ptr %p2
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%p3 = getelementptr i32, ptr %p, i64 3
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store i32 0, ptr %p3
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ret void
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}
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%ty = type { i64 }
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define void @dont_create_memcpy(ptr %p1, ptr %p2) {
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; LIBCALLS-LABEL: @dont_create_memcpy(
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; LIBCALLS-NEXT: call void @llvm.memmove.p0.p0.i64(ptr align 4 [[P2:%.*]], ptr align 4 [[P1:%.*]], i64 8, i1 false)
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; LIBCALLS-NEXT: ret void
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;
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; NO-LIBCALLS-LABEL: @dont_create_memcpy(
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; NO-LIBCALLS-NEXT: [[V:%.*]] = load [[TY:%.*]], ptr [[P1:%.*]], align 4
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; NO-LIBCALLS-NEXT: store [[TY]] [[V]], ptr [[P2:%.*]], align 4
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; NO-LIBCALLS-NEXT: ret void
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;
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%v = load %ty, ptr %p1
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store %ty %v, ptr %p2
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ret void
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}
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define void @forward_memcpy(ptr noalias %p1, ptr noalias %p2, ptr noalias %p3) {
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; CHECK-LABEL: @forward_memcpy(
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr [[P2:%.*]], ptr [[P1:%.*]], i64 16, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr [[P3:%.*]], ptr [[P1]], i64 16, i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memcpy.p0.p0.i64(ptr %p2, ptr %p1, i64 16, i1 false)
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call void @llvm.memcpy.p0.p0.i64(ptr %p3, ptr %p2, i64 16, i1 false)
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ret void
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}
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declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1)
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