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5edd1d8287
Argument evaluation order is one of the edge cases where Clang differs from GCC, yielding different IR depending on which compiler LLVM was built with. Make the order deterministic and tune the test to actually verify the order instead of trying to hide it. llvm-svn: 286126
169 lines
8.9 KiB
LLVM
169 lines
8.9 KiB
LLVM
; RUN: opt -basicaa -memcpyopt -S %s | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; CHECK-LABEL: define void @test
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; CHECK: [[ULE:%[0-9]+]] = icmp ule i64 %dst_size, %src_size
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; CHECK: [[SIZEDIFF:%[0-9]+]] = sub i64 %dst_size, %src_size
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; CHECK: [[SIZE:%[0-9]+]] = select i1 [[ULE]], i64 0, i64 [[SIZEDIFF]]
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; CHECK: [[DST:%[0-9]+]] = getelementptr i8, i8* %dst, i64 %src_size
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[DST]], i8 %c, i64 [[SIZE]], i32 1, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i32 1, i1 false)
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; CHECK-NEXT: ret void
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define void @test(i8* %src, i64 %src_size, i8* %dst, i64 %dst_size, i8 %c) {
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 %c, i64 %dst_size, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i32 1, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_different_types_i32_i64
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; CHECK: [[DSTSIZE:%[0-9]+]] = zext i32 %dst_size to i64
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; CHECK: [[ULE:%[0-9]+]] = icmp ule i64 [[DSTSIZE]], %src_size
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; CHECK: [[SIZEDIFF:%[0-9]+]] = sub i64 [[DSTSIZE]], %src_size
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; CHECK: [[SIZE:%[0-9]+]] = select i1 [[ULE]], i64 0, i64 [[SIZEDIFF]]
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; CHECK: [[DST:%[0-9]+]] = getelementptr i8, i8* %dst, i64 %src_size
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[DST]], i8 %c, i64 [[SIZE]], i32 1, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i32 1, i1 false)
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; CHECK-NEXT: ret void
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define void @test_different_types_i32_i64(i8* %dst, i8* %src, i32 %dst_size, i64 %src_size, i8 %c) {
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call void @llvm.memset.p0i8.i32(i8* %dst, i8 %c, i32 %dst_size, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i32 1, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_different_types_i128_i32
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; CHECK: [[SRCSIZE:%[0-9]+]] = zext i32 %src_size to i128
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; CHECK: [[ULE:%[0-9]+]] = icmp ule i128 %dst_size, [[SRCSIZE]]
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; CHECK: [[SIZEDIFF:%[0-9]+]] = sub i128 %dst_size, [[SRCSIZE]]
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; CHECK: [[SIZE:%[0-9]+]] = select i1 [[ULE]], i128 0, i128 [[SIZEDIFF]]
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; CHECK: [[DST:%[0-9]+]] = getelementptr i8, i8* %dst, i128 [[SRCSIZE]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i128(i8* [[DST]], i8 %c, i128 [[SIZE]], i32 1, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %src_size, i32 1, i1 false)
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; CHECK-NEXT: ret void
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define void @test_different_types_i128_i32(i8* %dst, i8* %src, i128 %dst_size, i32 %src_size, i8 %c) {
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call void @llvm.memset.p0i8.i128(i8* %dst, i8 %c, i128 %dst_size, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %src_size, i32 1, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_different_types_i32_i128
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; CHECK: [[DSTSIZE:%[0-9]+]] = zext i32 %dst_size to i128
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; CHECK: [[ULE:%[0-9]+]] = icmp ule i128 [[DSTSIZE]], %src_size
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; CHECK: [[SIZEDIFF:%[0-9]+]] = sub i128 [[DSTSIZE]], %src_size
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; CHECK: [[SIZE:%[0-9]+]] = select i1 [[ULE]], i128 0, i128 [[SIZEDIFF]]
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; CHECK: [[DST:%[0-9]+]] = getelementptr i8, i8* %dst, i128 %src_size
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; CHECK-NEXT: call void @llvm.memset.p0i8.i128(i8* [[DST]], i8 %c, i128 [[SIZE]], i32 1, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i128(i8* %dst, i8* %src, i128 %src_size, i32 1, i1 false)
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; CHECK-NEXT: ret void
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define void @test_different_types_i32_i128(i8* %dst, i8* %src, i32 %dst_size, i128 %src_size, i8 %c) {
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call void @llvm.memset.p0i8.i32(i8* %dst, i8 %c, i32 %dst_size, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i128(i8* %dst, i8* %src, i128 %src_size, i32 1, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_different_types_i64_i32
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; CHECK: [[SRCSIZE:%[0-9]+]] = zext i32 %src_size to i64
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; CHECK: [[ULE:%[0-9]+]] = icmp ule i64 %dst_size, [[SRCSIZE]]
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; CHECK: [[SIZEDIFF:%[0-9]+]] = sub i64 %dst_size, [[SRCSIZE]]
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; CHECK: [[SIZE:%[0-9]+]] = select i1 [[ULE]], i64 0, i64 [[SIZEDIFF]]
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; CHECK: [[DST:%[0-9]+]] = getelementptr i8, i8* %dst, i64 [[SRCSIZE]]
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[DST]], i8 %c, i64 [[SIZE]], i32 1, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %src_size, i32 1, i1 false)
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; CHECK-NEXT: ret void
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define void @test_different_types_i64_i32(i8* %dst, i8* %src, i64 %dst_size, i32 %src_size, i8 %c) {
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 %c, i64 %dst_size, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %src_size, i32 1, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_align_same
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; CHECK: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 0, i64 {{.*}}, i32 8, i1 false)
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define void @test_align_same(i8* %src, i8* %dst, i64 %dst_size) {
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 0, i64 %dst_size, i32 8, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 80, i32 1, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_align_min
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; CHECK: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 0, i64 {{.*}}, i32 4, i1 false)
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define void @test_align_min(i8* %src, i8* %dst, i64 %dst_size) {
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 0, i64 %dst_size, i32 8, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 36, i32 1, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_align_memcpy
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; CHECK: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 0, i64 {{.*}}, i32 8, i1 false)
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define void @test_align_memcpy(i8* %src, i8* %dst, i64 %dst_size) {
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 0, i64 %dst_size, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 80, i32 8, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_non_i8_dst_type
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; CHECK-NEXT: %dst = bitcast i64* %dst_pi64 to i8*
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; CHECK: [[ULE:%[0-9]+]] = icmp ule i64 %dst_size, %src_size
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; CHECK: [[SIZEDIFF:%[0-9]+]] = sub i64 %dst_size, %src_size
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; CHECK: [[SIZE:%[0-9]+]] = select i1 [[ULE]], i64 0, i64 [[SIZEDIFF]]
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; CHECK: [[DST:%[0-9]+]] = getelementptr i8, i8* %dst, i64 %src_size
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[DST]], i8 %c, i64 [[SIZE]], i32 1, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i32 1, i1 false)
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; CHECK-NEXT: ret void
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define void @test_non_i8_dst_type(i8* %src, i64 %src_size, i64* %dst_pi64, i64 %dst_size, i8 %c) {
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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, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %src_size, i32 1, i1 false)
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ret void
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}
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; CHECK-LABEL: define void @test_different_dst
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* %dst, i8 0, i64 %dst_size, i32 1, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst2, i8* %src, i64 %src_size, i32 1, i1 false)
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; CHECK-NEXT: ret void
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define void @test_different_dst(i8* %dst2, i8* %src, i64 %src_size, i8* %dst, i64 %dst_size) {
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call void @llvm.memset.p0i8.i64(i8* %dst, i8 0, i64 %dst_size, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst2, i8* %src, i64 %src_size, i32 1, 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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; CHECK-LABEL: define i8 @test_intermediate_read
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* %a, i8 0, i64 64, i32 1, i1 false)
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; CHECK-NEXT: %r = load i8, i8* %a
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 24, i32 1, i1 false)
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; CHECK-NEXT: ret i8 %r
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define i8 @test_intermediate_read(i8* %a, i8* %b) #0 {
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call void @llvm.memset.p0i8.i64(i8* %a, i8 0, i64 64, i32 1, 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, i32 1, 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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; CHECK-LABEL: define void @test_intermediate_write
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; CHECK-NEXT: %a = alloca %struct
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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, i32 1, i1 false)
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; CHECK-NEXT: store i8 1, i8* %a1
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a0, i8* %b, i64 8, i32 1, i1 false)
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; CHECK-NEXT: ret void
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define void @test_intermediate_write(i8* %b) #0 {
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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, i32 1, 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, i32 1, i1 false)
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ret void
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}
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1)
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1)
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declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1)
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declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1)
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declare void @llvm.memset.p0i8.i128(i8* nocapture, i8, i128, i32, i1)
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declare void @llvm.memcpy.p0i8.p0i8.i128(i8* nocapture, i8* nocapture readonly, i128, i32, i1)
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