247 lines
13 KiB
LLVM
247 lines
13 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -basic-aa -memcpyopt -S %s -enable-memcpyopt-memoryssa=0 | FileCheck %s
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; RUN: opt -basic-aa -memcpyopt -S %s -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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define void @test(i8* %src, i64 %src_size, i8* noalias %dst, i64 %dst_size, i8 %c) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i64 [[DST_SIZE:%.*]], [[SRC_SIZE:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[DST_SIZE]], [[SRC_SIZE]]
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; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP1]], i64 0, i64 [[TMP2]]
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, i8* [[DST:%.*]], i64 [[SRC_SIZE]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[TMP4]], i8 [[C:%.*]], i64 [[TMP3]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST]], i8* [[SRC:%.*]], i64 [[SRC_SIZE]], i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 %c, i64 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i1 false)
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ret void
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}
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define void @test_different_types_i32_i64(i8* noalias %dst, i8* %src, i32 %dst_size, i64 %src_size, i8 %c) {
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; CHECK-LABEL: @test_different_types_i32_i64(
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; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[DST_SIZE:%.*]] to i64
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ule i64 [[TMP1]], [[SRC_SIZE:%.*]]
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; CHECK-NEXT: [[TMP3:%.*]] = sub i64 [[TMP1]], [[SRC_SIZE]]
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; CHECK-NEXT: [[TMP4:%.*]] = select i1 [[TMP2]], i64 0, i64 [[TMP3]]
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; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, i8* [[DST:%.*]], i64 [[SRC_SIZE]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[TMP5]], i8 [[C:%.*]], i64 [[TMP4]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST]], i8* [[SRC:%.*]], i64 [[SRC_SIZE]], i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i32(i8* %dst, i8 %c, i32 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i1 false)
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ret void
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}
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define void @test_different_types_i128_i32(i8* noalias %dst, i8* %src, i128 %dst_size, i32 %src_size, i8 %c) {
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; CHECK-LABEL: @test_different_types_i128_i32(
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; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[SRC_SIZE:%.*]] to i128
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ule i128 [[DST_SIZE:%.*]], [[TMP1]]
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; CHECK-NEXT: [[TMP3:%.*]] = sub i128 [[DST_SIZE]], [[TMP1]]
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; CHECK-NEXT: [[TMP4:%.*]] = select i1 [[TMP2]], i128 0, i128 [[TMP3]]
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; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, i8* [[DST:%.*]], i128 [[TMP1]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i128(i8* align 1 [[TMP5]], i8 [[C:%.*]], i128 [[TMP4]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[DST]], i8* [[SRC:%.*]], i32 [[SRC_SIZE]], i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i128(i8* %dst, i8 %c, i128 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %src_size, i1 false)
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ret void
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}
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define void @test_different_types_i32_i128(i8* noalias %dst, i8* %src, i32 %dst_size, i128 %src_size, i8 %c) {
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; CHECK-LABEL: @test_different_types_i32_i128(
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; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[DST_SIZE:%.*]] to i128
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ule i128 [[TMP1]], [[SRC_SIZE:%.*]]
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; CHECK-NEXT: [[TMP3:%.*]] = sub i128 [[TMP1]], [[SRC_SIZE]]
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; CHECK-NEXT: [[TMP4:%.*]] = select i1 [[TMP2]], i128 0, i128 [[TMP3]]
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; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, i8* [[DST:%.*]], i128 [[SRC_SIZE]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i128(i8* align 1 [[TMP5]], i8 [[C:%.*]], i128 [[TMP4]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i128(i8* [[DST]], i8* [[SRC:%.*]], i128 [[SRC_SIZE]], i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i32(i8* %dst, i8 %c, i32 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i128(i8* %dst, i8* %src, i128 %src_size, i1 false)
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ret void
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}
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define void @test_different_types_i64_i32(i8* noalias %dst, i8* %src, i64 %dst_size, i32 %src_size, i8 %c) {
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; CHECK-LABEL: @test_different_types_i64_i32(
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; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[SRC_SIZE:%.*]] to i64
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ule i64 [[DST_SIZE:%.*]], [[TMP1]]
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; CHECK-NEXT: [[TMP3:%.*]] = sub i64 [[DST_SIZE]], [[TMP1]]
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; CHECK-NEXT: [[TMP4:%.*]] = select i1 [[TMP2]], i64 0, i64 [[TMP3]]
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; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, i8* [[DST:%.*]], i64 [[TMP1]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[TMP5]], i8 [[C:%.*]], i64 [[TMP4]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[DST]], i8* [[SRC:%.*]], i32 [[SRC_SIZE]], i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 %c, i64 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %src_size, i1 false)
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ret void
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}
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define void @test_align_same(i8* %src, i8* noalias %dst, i64 %dst_size) {
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; CHECK-LABEL: @test_align_same(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i64 [[DST_SIZE:%.*]], 80
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; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[DST_SIZE]], 80
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; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP1]], i64 0, i64 [[TMP2]]
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, i8* [[DST:%.*]], i64 80
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[TMP4]], i8 0, i64 [[TMP3]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST]], i8* [[SRC:%.*]], i64 80, i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i64(i8* align 8 %dst, i8 0, i64 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 80, i1 false)
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ret void
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}
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define void @test_align_min(i8* %src, i8* noalias %dst, i64 %dst_size) {
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; CHECK-LABEL: @test_align_min(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i64 [[DST_SIZE:%.*]], 36
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; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[DST_SIZE]], 36
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; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP1]], i64 0, i64 [[TMP2]]
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, i8* [[DST:%.*]], i64 36
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 4 [[TMP4]], i8 0, i64 [[TMP3]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST]], i8* [[SRC:%.*]], i64 36, i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i64(i8* align 8 %dst, i8 0, i64 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 36, i1 false)
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ret void
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}
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define void @test_align_memcpy(i8* %src, i8* noalias %dst, i64 %dst_size) {
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; CHECK-LABEL: @test_align_memcpy(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i64 [[DST_SIZE:%.*]], 80
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; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[DST_SIZE]], 80
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; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP1]], i64 0, i64 [[TMP2]]
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, i8* [[DST:%.*]], i64 80
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[TMP4]], i8 0, i64 [[TMP3]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 [[DST]], i8* align 8 [[SRC:%.*]], i64 80, i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 0, i64 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %dst, i8* align 8 %src, i64 80, i1 false)
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ret void
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}
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define void @test_non_i8_dst_type(i8* %src, i64 %src_size, i64* noalias %dst_pi64, i64 %dst_size, i8 %c) {
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; CHECK-LABEL: @test_non_i8_dst_type(
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; CHECK-NEXT: [[DST:%.*]] = bitcast i64* [[DST_PI64:%.*]] to i8*
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i64 [[DST_SIZE:%.*]], [[SRC_SIZE:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[DST_SIZE]], [[SRC_SIZE]]
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; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP1]], i64 0, i64 [[TMP2]]
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, i8* [[DST]], i64 [[SRC_SIZE]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[TMP4]], i8 [[C:%.*]], i64 [[TMP3]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST]], i8* [[SRC:%.*]], i64 [[SRC_SIZE]], i1 false)
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; CHECK-NEXT: ret void
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;
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%dst = bitcast i64* %dst_pi64 to i8*
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 %c, i64 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i1 false)
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ret void
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}
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define void @test_different_dst(i8* noalias %dst2, i8* %src, i64 %src_size, i8* noalias %dst, i64 %dst_size) {
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; CHECK-LABEL: @test_different_dst(
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[DST:%.*]], i8 0, i64 [[DST_SIZE:%.*]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST2:%.*]], i8* [[SRC:%.*]], i64 [[SRC_SIZE:%.*]], i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 0, i64 %dst_size, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst2, i8* %src, i64 %src_size, i1 false)
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ret void
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}
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; Make sure we also take into account dependencies on the destination.
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define i8 @test_intermediate_read(i8* noalias %a, i8* %b) #0 {
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; CHECK-LABEL: @test_intermediate_read(
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[A:%.*]], i8 0, i64 64, i1 false)
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; CHECK-NEXT: [[R:%.*]] = load i8, i8* [[A]], align 1
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[A]], i8* [[B:%.*]], i64 24, i1 false)
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; CHECK-NEXT: ret i8 [[R]]
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;
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call void @llvm.memset.p0i8.i64(i8* %a, i8 0, i64 64, i1 false)
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%r = load i8, i8* %a
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 24, i1 false)
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ret i8 %r
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}
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%struct = type { [8 x i8], [8 x i8] }
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define void @test_intermediate_write(i8* %b) #0 {
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; CHECK-LABEL: @test_intermediate_write(
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; CHECK-NEXT: [[A:%.*]] = alloca [[STRUCT:%.*]], align 8
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; CHECK-NEXT: [[A0:%.*]] = getelementptr [[STRUCT]], %struct* [[A]], i32 0, i32 0, i32 0
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; CHECK-NEXT: [[A1:%.*]] = getelementptr [[STRUCT]], %struct* [[A]], i32 0, i32 1, i32 0
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[A0]], i8 0, i64 16, i1 false)
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; CHECK-NEXT: store i8 1, i8* [[A1]], align 1
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[A0]], i8* [[B:%.*]], i64 8, i1 false)
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; CHECK-NEXT: ret void
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;
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%a = alloca %struct
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%a0 = getelementptr %struct, %struct* %a, i32 0, i32 0, i32 0
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%a1 = getelementptr %struct, %struct* %a, i32 0, i32 1, i32 0
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call void @llvm.memset.p0i8.i64(i8* %a0, i8 0, i64 16, i1 false)
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store i8 1, i8* %a1
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a0, i8* %b, i64 8, i1 false)
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ret void
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}
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define void @test_throwing_call(i8* %src, i64 %src_size, i8* noalias %dst, i64 %dst_size, i8 %c) {
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; CHECK-LABEL: @test_throwing_call(
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[DST:%.*]], i8 [[C:%.*]], i64 [[DST_SIZE:%.*]], i1 false)
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; CHECK-NEXT: call void @call() [[ATTR2:#.*]]
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST]], i8* [[SRC:%.*]], i64 [[SRC_SIZE:%.*]], i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 %c, i64 %dst_size, i1 false)
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call void @call() readnone
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i1 false)
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ret void
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}
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define void @test_throwing_call_alloca(i8* %src, i64 %src_size, i64 %dst_size, i8 %c) {
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; CHECK-LABEL: @test_throwing_call_alloca(
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; CHECK-NEXT: [[DST:%.*]] = alloca i8, align 1
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; CHECK-NEXT: call void @call() [[ATTR2]]
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i64 [[DST_SIZE:%.*]], [[SRC_SIZE:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[DST_SIZE]], [[SRC_SIZE]]
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; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP1]], i64 0, i64 [[TMP2]]
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, i8* [[DST]], i64 [[SRC_SIZE]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[TMP4]], i8 [[C:%.*]], i64 [[TMP3]], i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST]], i8* [[SRC:%.*]], i64 [[SRC_SIZE]], i1 false)
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; CHECK-NEXT: ret void
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;
|
||
|
|
%dst = alloca i8
|
||
|
|
call void @llvm.memset.p0i8.i64(i8* %dst, i8 %c, i64 %dst_size, i1 false)
|
||
|
|
call void @call() readnone
|
||
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i1 false)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; %dst and %src in the memcpy may be equal, in which case shorting the memset
|
||
|
|
; is not legal.
|
||
|
|
define void @test_missing_noalias(i8* %src, i64 %src_size, i8* %dst, i64 %dst_size, i8 %c) {
|
||
|
|
; CHECK-LABEL: @test_missing_noalias(
|
||
|
|
; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[DST:%.*]], i8 [[C:%.*]], i64 [[DST_SIZE:%.*]], i1 false)
|
||
|
|
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DST]], i8* [[SRC:%.*]], i64 [[SRC_SIZE:%.*]], i1 false)
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call void @llvm.memset.p0i8.i64(i8* %dst, i8 %c, i64 %dst_size, i1 false)
|
||
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i1 false)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1)
|
||
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1)
|
||
|
|
declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1)
|
||
|
|
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i1)
|
||
|
|
declare void @llvm.memset.p0i8.i128(i8* nocapture, i8, i128, i1)
|
||
|
|
declare void @llvm.memcpy.p0i8.p0i8.i128(i8* nocapture, i8* nocapture readonly, i128, i1)
|
||
|
|
declare void @call()
|