forked from OSchip/llvm-project
130 lines
5.8 KiB
LLVM
130 lines
5.8 KiB
LLVM
; RUN: opt -S -amdgpu-lower-intrinsics %s | FileCheck -check-prefix=OPT %s
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; RUN: opt -S -amdgpu-lower-intrinsics -use-wide-memcpy-loop-lowering=true %s | FileCheck -check-prefix=WOPT %s
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declare void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* nocapture, i8 addrspace(1)* nocapture readonly, i64, i32, i1) #1
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declare void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* nocapture, i8 addrspace(3)* nocapture readonly, i32, i32, i1) #1
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declare void @llvm.memmove.p1i8.p1i8.i64(i8 addrspace(1)* nocapture, i8 addrspace(1)* nocapture readonly, i64, i32, i1) #1
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declare void @llvm.memset.p1i8.i64(i8 addrspace(1)* nocapture, i8, i64, i32, i1) #1
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; Test the upper bound for sizes to leave
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; OPT-LABEL: @max_size_small_static_memcpy_caller0(
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; OPT: call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 1024, i32 1, i1 false)
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define amdgpu_kernel void @max_size_small_static_memcpy_caller0(i8 addrspace(1)* %dst, i8 addrspace(1)* %src) #0 {
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 1024, i32 1, i1 false)
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ret void
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}
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; Smallest static size which will be expanded
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; OPT-LABEL: @min_size_large_static_memcpy_caller0(
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; OPT-NOT: call
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; OPT: getelementptr
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; OPT-NEXT: load i8
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; OPT: getelementptr
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; OPT-NEXT: store i8
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; WOPT-LABEL: @min_size_large_static_memcpy_caller0(
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; WOPT-NOT: call
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; WOPT: br label %load-store-loop
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; WOPT: [[T1:%[0-9]+]] = getelementptr inbounds i8, i8 addrspace(1)* %src, i64 %loop-index
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; WOPT-NEXT: [[T2:%[0-9]+]] = load i8, i8 addrspace(1)* [[T1]]
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; WOPT-NEXT: [[T3:%[0-9]+]] = getelementptr inbounds i8, i8 addrspace(1)* %dst, i64 %loop-index
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; WOPT-NEXT: store i8 [[T2]], i8 addrspace(1)* [[T3]]
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; WOPT-NEXT: [[T4:%[0-9]+]] = add i64 %loop-index, 1
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; WOPT-NEXT: [[T5:%[0-9]+]] = icmp ult i64 [[T4]], 1025
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; WOPT-NEXT: br i1 [[T5]], label %load-store-loop, label %memcpy-split
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define amdgpu_kernel void @min_size_large_static_memcpy_caller0(i8 addrspace(1)* %dst, i8 addrspace(1)* %src) #0 {
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 1025, i32 1, i1 false)
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ret void
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}
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; OPT-LABEL: @max_size_small_static_memmove_caller0(
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; OPT: call void @llvm.memmove.p1i8.p1i8.i64(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 1024, i32 1, i1 false)
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define amdgpu_kernel void @max_size_small_static_memmove_caller0(i8 addrspace(1)* %dst, i8 addrspace(1)* %src) #0 {
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call void @llvm.memmove.p1i8.p1i8.i64(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 1024, i32 1, i1 false)
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ret void
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}
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; OPT-LABEL: @min_size_large_static_memmove_caller0(
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; OPT-NOT: call
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; OPT: getelementptr
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; OPT-NEXT: load i8
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; OPT: getelementptr
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; OPT-NEXT: store i8
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define amdgpu_kernel void @min_size_large_static_memmove_caller0(i8 addrspace(1)* %dst, i8 addrspace(1)* %src) #0 {
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call void @llvm.memmove.p1i8.p1i8.i64(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 1025, i32 1, i1 false)
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ret void
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}
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; OPT-LABEL: @max_size_small_static_memset_caller0(
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; OPT: call void @llvm.memset.p1i8.i64(i8 addrspace(1)* %dst, i8 %val, i64 1024, i32 1, i1 false)
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define amdgpu_kernel void @max_size_small_static_memset_caller0(i8 addrspace(1)* %dst, i8 %val) #0 {
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call void @llvm.memset.p1i8.i64(i8 addrspace(1)* %dst, i8 %val, i64 1024, i32 1, i1 false)
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ret void
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}
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; OPT-LABEL: @min_size_large_static_memset_caller0(
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; OPT-NOT: call
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; OPT: getelementptr
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; OPT: store i8
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define amdgpu_kernel void @min_size_large_static_memset_caller0(i8 addrspace(1)* %dst, i8 %val) #0 {
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call void @llvm.memset.p1i8.i64(i8 addrspace(1)* %dst, i8 %val, i64 1025, i32 1, i1 false)
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ret void
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}
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; OPT-LABEL: @variable_memcpy_caller0(
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; OPT-NOT: call
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; OPT: phi
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define amdgpu_kernel void @variable_memcpy_caller0(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 %n) #0 {
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 %n, i32 1, i1 false)
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ret void
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}
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; OPT-LABEL: @variable_memcpy_caller1(
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; OPT-NOT: call
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; OPT: phi
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define amdgpu_kernel void @variable_memcpy_caller1(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 %n) #0 {
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst, i8 addrspace(1)* %src, i64 %n, i32 1, i1 false)
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ret void
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}
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; OPT-LABEL: @memcpy_multi_use_one_function(
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; OPT-NOT: call
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; OPT: phi
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; OPT-NOT: call
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; OPT: phi
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; OPT-NOT: call
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define amdgpu_kernel void @memcpy_multi_use_one_function(i8 addrspace(1)* %dst0, i8 addrspace(1)* %dst1, i8 addrspace(1)* %src, i64 %n, i64 %m) #0 {
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst0, i8 addrspace(1)* %src, i64 %n, i32 1, i1 false)
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst1, i8 addrspace(1)* %src, i64 %m, i32 1, i1 false)
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ret void
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}
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; OPT-LABEL: @memcpy_alt_type(
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; OPT: phi
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; OPT: getelementptr inbounds i8, i8 addrspace(3)*
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; OPT: load i8, i8 addrspace(3)*
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; OPT: getelementptr inbounds i8, i8 addrspace(1)*
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; OPT: store i8
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define amdgpu_kernel void @memcpy_alt_type(i8 addrspace(1)* %dst, i8 addrspace(3)* %src, i32 %n) #0 {
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* %dst, i8 addrspace(3)* %src, i32 %n, i32 1, i1 false)
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ret void
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}
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; One of the uses in the function should be expanded, the other left alone.
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; OPT-LABEL: @memcpy_multi_use_one_function_keep_small(
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; OPT: getelementptr inbounds i8, i8 addrspace(1)*
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; OPT: load i8, i8 addrspace(1)*
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; OPT: getelementptr inbounds i8, i8 addrspace(1)*
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; OPT: store i8
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; OPT: call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst1, i8 addrspace(1)* %src, i64 102, i32 1, i1 false)
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define amdgpu_kernel void @memcpy_multi_use_one_function_keep_small(i8 addrspace(1)* %dst0, i8 addrspace(1)* %dst1, i8 addrspace(1)* %src, i64 %n) #0 {
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst0, i8 addrspace(1)* %src, i64 %n, i32 1, i1 false)
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* %dst1, i8 addrspace(1)* %src, i64 102, i32 1, i1 false)
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ret void
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}
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attributes #0 = { nounwind }
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attributes #1 = { argmemonly nounwind }
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