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fcc3666c3b
Due to visit order problems, in the case of an unaligned copy the legalized DAG fails to eliminate extra instructions introduced by the expansion of both unaligned parts. llvm-svn: 274397
243 lines
9.4 KiB
LLVM
243 lines
9.4 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
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; SI-LABEL: {{^}}load_i8_to_f32:
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; SI: buffer_load_ubyte [[LOADREG:v[0-9]+]],
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; SI-NOT: bfe
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; SI-NOT: lshr
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; SI: v_cvt_f32_ubyte0_e32 [[CONV:v[0-9]+]], [[LOADREG]]
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; SI: buffer_store_dword [[CONV]],
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define void @load_i8_to_f32(float addrspace(1)* noalias %out, i8 addrspace(1)* noalias %in) nounwind {
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%load = load i8, i8 addrspace(1)* %in, align 1
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%cvt = uitofp i8 %load to float
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store float %cvt, float addrspace(1)* %out, align 4
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ret void
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}
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; SI-LABEL: {{^}}load_v2i8_to_v2f32:
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; SI: buffer_load_ushort [[LD:v[0-9]+]]
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; SI-DAG: v_cvt_f32_ubyte1_e32 v[[HIRESULT:[0-9]+]], [[LD]]
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; SI-DAG: v_cvt_f32_ubyte0_e32 v[[LORESULT:[0-9]+]], [[LD]]
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; SI: buffer_store_dwordx2 v{{\[}}[[LORESULT]]:[[HIRESULT]]{{\]}},
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define void @load_v2i8_to_v2f32(<2 x float> addrspace(1)* noalias %out, <2 x i8> addrspace(1)* noalias %in) nounwind {
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%load = load <2 x i8>, <2 x i8> addrspace(1)* %in, align 2
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%cvt = uitofp <2 x i8> %load to <2 x float>
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store <2 x float> %cvt, <2 x float> addrspace(1)* %out, align 16
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ret void
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}
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; SI-LABEL: {{^}}load_v3i8_to_v3f32:
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; SI: buffer_load_dword [[VAL:v[0-9]+]]
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; SI-NOT: v_cvt_f32_ubyte3_e32
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; SI-DAG: v_cvt_f32_ubyte2_e32 v{{[0-9]+}}, [[VAL]]
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; SI-DAG: v_cvt_f32_ubyte1_e32 v[[HIRESULT:[0-9]+]], [[VAL]]
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; SI-DAG: v_cvt_f32_ubyte0_e32 v[[LORESULT:[0-9]+]], [[VAL]]
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; SI: buffer_store_dwordx2 v{{\[}}[[LORESULT]]:[[HIRESULT]]{{\]}},
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define void @load_v3i8_to_v3f32(<3 x float> addrspace(1)* noalias %out, <3 x i8> addrspace(1)* noalias %in) nounwind {
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%load = load <3 x i8>, <3 x i8> addrspace(1)* %in, align 4
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%cvt = uitofp <3 x i8> %load to <3 x float>
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store <3 x float> %cvt, <3 x float> addrspace(1)* %out, align 16
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ret void
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}
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; SI-LABEL: {{^}}load_v4i8_to_v4f32:
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; SI: buffer_load_dword [[LOADREG:v[0-9]+]]
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; SI-NOT: bfe
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; SI-NOT: lshr
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; SI-DAG: v_cvt_f32_ubyte3_e32 v[[HIRESULT:[0-9]+]], [[LOADREG]]
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; SI-DAG: v_cvt_f32_ubyte2_e32 v{{[0-9]+}}, [[LOADREG]]
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; SI-DAG: v_cvt_f32_ubyte1_e32 v{{[0-9]+}}, [[LOADREG]]
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; SI-DAG: v_cvt_f32_ubyte0_e32 v[[LORESULT:[0-9]+]], [[LOADREG]]
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; SI: buffer_store_dwordx4 v{{\[}}[[LORESULT]]:[[HIRESULT]]{{\]}},
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define void @load_v4i8_to_v4f32(<4 x float> addrspace(1)* noalias %out, <4 x i8> addrspace(1)* noalias %in) nounwind {
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%load = load <4 x i8>, <4 x i8> addrspace(1)* %in, align 4
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%cvt = uitofp <4 x i8> %load to <4 x float>
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store <4 x float> %cvt, <4 x float> addrspace(1)* %out, align 16
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ret void
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}
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; This should not be adding instructions to shift into the correct
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; position in the word for the component.
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; FIXME: Packing bytes
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; SI-LABEL: {{^}}load_v4i8_to_v4f32_unaligned:
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; SI: buffer_load_ubyte [[LOADREG3:v[0-9]+]]
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; SI: buffer_load_ubyte [[LOADREG2:v[0-9]+]]
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; SI: buffer_load_ubyte [[LOADREG1:v[0-9]+]]
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; SI: buffer_load_ubyte [[LOADREG0:v[0-9]+]]
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; SI-DAG: v_lshlrev_b32
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; SI-DAG: v_or_b32
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; SI-DAG: v_cvt_f32_ubyte0_e32 v[[LORESULT:[0-9]+]],
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; SI-DAG: v_cvt_f32_ubyte0_e32 v{{[0-9]+}},
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; SI-DAG: v_cvt_f32_ubyte0_e32 v{{[0-9]+}},
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; SI-DAG: v_cvt_f32_ubyte0_e32 v[[HIRESULT:[0-9]+]]
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; SI: buffer_store_dwordx4
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define void @load_v4i8_to_v4f32_unaligned(<4 x float> addrspace(1)* noalias %out, <4 x i8> addrspace(1)* noalias %in) nounwind {
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%load = load <4 x i8>, <4 x i8> addrspace(1)* %in, align 1
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%cvt = uitofp <4 x i8> %load to <4 x float>
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store <4 x float> %cvt, <4 x float> addrspace(1)* %out, align 16
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ret void
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}
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; Instructions still emitted to repack bytes for add use.
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; SI-LABEL: {{^}}load_v4i8_to_v4f32_2_uses:
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; SI: buffer_load_dword
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; SI-DAG: v_cvt_f32_ubyte0_e32
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; SI-DAG: v_cvt_f32_ubyte1_e32
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; SI-DAG: v_cvt_f32_ubyte2_e32
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; SI-DAG: v_cvt_f32_ubyte3_e32
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; SI-DAG: v_lshrrev_b32_e32 v{{[0-9]+}}, 24
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; SI-DAG: v_lshrrev_b32_e32 v{{[0-9]+}}, 16
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; SI-DAG: v_lshlrev_b32_e32 v{{[0-9]+}}, 16
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; SI-DAG: v_lshlrev_b32_e32 v{{[0-9]+}}, 8
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; SI-DAG: v_and_b32_e32 v{{[0-9]+}}, 0xffff,
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; SI-DAG: v_and_b32_e32 v{{[0-9]+}}, 0xff00,
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; SI-DAG: v_add_i32
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; SI: buffer_store_dwordx4
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; SI: buffer_store_dword
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; SI: s_endpgm
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define void @load_v4i8_to_v4f32_2_uses(<4 x float> addrspace(1)* noalias %out, <4 x i8> addrspace(1)* noalias %out2, <4 x i8> addrspace(1)* noalias %in) nounwind {
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%load = load <4 x i8>, <4 x i8> addrspace(1)* %in, align 4
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%cvt = uitofp <4 x i8> %load to <4 x float>
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store <4 x float> %cvt, <4 x float> addrspace(1)* %out, align 16
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%add = add <4 x i8> %load, <i8 9, i8 9, i8 9, i8 9> ; Second use of %load
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store <4 x i8> %add, <4 x i8> addrspace(1)* %out2, align 4
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ret void
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}
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; Make sure this doesn't crash.
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; SI-LABEL: {{^}}load_v7i8_to_v7f32:
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; SI: s_endpgm
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define void @load_v7i8_to_v7f32(<7 x float> addrspace(1)* noalias %out, <7 x i8> addrspace(1)* noalias %in) nounwind {
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%load = load <7 x i8>, <7 x i8> addrspace(1)* %in, align 1
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%cvt = uitofp <7 x i8> %load to <7 x float>
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store <7 x float> %cvt, <7 x float> addrspace(1)* %out, align 16
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ret void
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}
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; SI-LABEL: {{^}}load_v8i8_to_v8f32:
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; SI: buffer_load_dwordx2 v{{\[}}[[LOLOAD:[0-9]+]]:[[HILOAD:[0-9]+]]{{\]}},
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; SI-NOT: bfe
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; SI-NOT: lshr
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; SI-DAG: v_cvt_f32_ubyte3_e32 v{{[0-9]+}}, v[[LOLOAD]]
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; SI-DAG: v_cvt_f32_ubyte2_e32 v{{[0-9]+}}, v[[LOLOAD]]
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; SI-DAG: v_cvt_f32_ubyte1_e32 v{{[0-9]+}}, v[[LOLOAD]]
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; SI-DAG: v_cvt_f32_ubyte0_e32 v{{[0-9]+}}, v[[LOLOAD]]
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; SI-DAG: v_cvt_f32_ubyte3_e32 v{{[0-9]+}}, v[[HILOAD]]
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; SI-DAG: v_cvt_f32_ubyte2_e32 v{{[0-9]+}}, v[[HILOAD]]
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; SI-DAG: v_cvt_f32_ubyte1_e32 v{{[0-9]+}}, v[[HILOAD]]
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; SI-DAG: v_cvt_f32_ubyte0_e32 v{{[0-9]+}}, v[[HILOAD]]
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; SI-NOT: bfe
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; SI-NOT: lshr
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; SI: buffer_store_dwordx4
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; SI: buffer_store_dwordx4
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define void @load_v8i8_to_v8f32(<8 x float> addrspace(1)* noalias %out, <8 x i8> addrspace(1)* noalias %in) nounwind {
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%load = load <8 x i8>, <8 x i8> addrspace(1)* %in, align 8
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%cvt = uitofp <8 x i8> %load to <8 x float>
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store <8 x float> %cvt, <8 x float> addrspace(1)* %out, align 16
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ret void
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}
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; SI-LABEL: {{^}}i8_zext_inreg_i32_to_f32:
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; SI: buffer_load_dword [[LOADREG:v[0-9]+]],
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; SI: v_add_i32_e32 [[ADD:v[0-9]+]], vcc, 2, [[LOADREG]]
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; SI-NEXT: v_cvt_f32_ubyte0_e32 [[CONV:v[0-9]+]], [[ADD]]
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; SI: buffer_store_dword [[CONV]],
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define void @i8_zext_inreg_i32_to_f32(float addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
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%load = load i32, i32 addrspace(1)* %in, align 4
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%add = add i32 %load, 2
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%inreg = and i32 %add, 255
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%cvt = uitofp i32 %inreg to float
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store float %cvt, float addrspace(1)* %out, align 4
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ret void
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}
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; SI-LABEL: {{^}}i8_zext_inreg_hi1_to_f32:
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define void @i8_zext_inreg_hi1_to_f32(float addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
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%load = load i32, i32 addrspace(1)* %in, align 4
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%inreg = and i32 %load, 65280
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%shr = lshr i32 %inreg, 8
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%cvt = uitofp i32 %shr to float
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store float %cvt, float addrspace(1)* %out, align 4
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ret void
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}
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; We don't get these ones because of the zext, but instcombine removes
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; them so it shouldn't really matter.
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; SI-LABEL: {{^}}i8_zext_i32_to_f32:
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define void @i8_zext_i32_to_f32(float addrspace(1)* noalias %out, i8 addrspace(1)* noalias %in) nounwind {
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%load = load i8, i8 addrspace(1)* %in, align 1
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%ext = zext i8 %load to i32
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%cvt = uitofp i32 %ext to float
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store float %cvt, float addrspace(1)* %out, align 4
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ret void
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}
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; SI-LABEL: {{^}}v4i8_zext_v4i32_to_v4f32:
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define void @v4i8_zext_v4i32_to_v4f32(<4 x float> addrspace(1)* noalias %out, <4 x i8> addrspace(1)* noalias %in) nounwind {
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%load = load <4 x i8>, <4 x i8> addrspace(1)* %in, align 1
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%ext = zext <4 x i8> %load to <4 x i32>
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%cvt = uitofp <4 x i32> %ext to <4 x float>
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store <4 x float> %cvt, <4 x float> addrspace(1)* %out, align 16
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ret void
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}
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; SI-LABEL: {{^}}extract_byte0_to_f32:
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; SI: buffer_load_dword [[VAL:v[0-9]+]]
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; SI-NOT: [[VAL]]
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; SI: v_cvt_f32_ubyte0_e32 [[CONV:v[0-9]+]], [[VAL]]
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; SI: buffer_store_dword [[CONV]]
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define void @extract_byte0_to_f32(float addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
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%val = load i32, i32 addrspace(1)* %in
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%and = and i32 %val, 255
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%cvt = uitofp i32 %and to float
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store float %cvt, float addrspace(1)* %out
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ret void
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}
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; SI-LABEL: {{^}}extract_byte1_to_f32:
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; SI: buffer_load_dword [[VAL:v[0-9]+]]
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; SI-NOT: [[VAL]]
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; SI: v_cvt_f32_ubyte1_e32 [[CONV:v[0-9]+]], [[VAL]]
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; SI: buffer_store_dword [[CONV]]
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define void @extract_byte1_to_f32(float addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
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%val = load i32, i32 addrspace(1)* %in
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%srl = lshr i32 %val, 8
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%and = and i32 %srl, 255
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%cvt = uitofp i32 %and to float
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store float %cvt, float addrspace(1)* %out
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ret void
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}
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; SI-LABEL: {{^}}extract_byte2_to_f32:
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; SI: buffer_load_dword [[VAL:v[0-9]+]]
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; SI-NOT: [[VAL]]
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; SI: v_cvt_f32_ubyte2_e32 [[CONV:v[0-9]+]], [[VAL]]
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; SI: buffer_store_dword [[CONV]]
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define void @extract_byte2_to_f32(float addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
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%val = load i32, i32 addrspace(1)* %in
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%srl = lshr i32 %val, 16
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%and = and i32 %srl, 255
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%cvt = uitofp i32 %and to float
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store float %cvt, float addrspace(1)* %out
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ret void
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}
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; SI-LABEL: {{^}}extract_byte3_to_f32:
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; SI: buffer_load_dword [[VAL:v[0-9]+]]
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; SI-NOT: [[VAL]]
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; SI: v_cvt_f32_ubyte3_e32 [[CONV:v[0-9]+]], [[VAL]]
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; SI: buffer_store_dword [[CONV]]
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define void @extract_byte3_to_f32(float addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
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%val = load i32, i32 addrspace(1)* %in
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%srl = lshr i32 %val, 24
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%and = and i32 %srl, 255
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%cvt = uitofp i32 %and to float
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store float %cvt, float addrspace(1)* %out
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ret void
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}
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