forked from OSchip/llvm-project
98 lines
3.5 KiB
LLVM
98 lines
3.5 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck --check-prefix=SI %s
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; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck --check-prefix=VI %s
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; CHECK-LABEL: {{^}}trunc_i64_bitcast_v2i32:
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; CHECK: buffer_load_dword v
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; CHECK: buffer_store_dword v
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define void @trunc_i64_bitcast_v2i32(i32 addrspace(1)* %out, <2 x i32> addrspace(1)* %in) {
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%ld = load <2 x i32>, <2 x i32> addrspace(1)* %in
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%bc = bitcast <2 x i32> %ld to i64
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%trunc = trunc i64 %bc to i32
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store i32 %trunc, i32 addrspace(1)* %out
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ret void
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}
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; CHECK-LABEL: {{^}}trunc_i96_bitcast_v3i32:
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; CHECK: buffer_load_dword v
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; CHECK: buffer_store_dword v
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define void @trunc_i96_bitcast_v3i32(i32 addrspace(1)* %out, <3 x i32> addrspace(1)* %in) {
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%ld = load <3 x i32>, <3 x i32> addrspace(1)* %in
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%bc = bitcast <3 x i32> %ld to i96
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%trunc = trunc i96 %bc to i32
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store i32 %trunc, i32 addrspace(1)* %out
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ret void
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}
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; CHECK-LABEL: {{^}}trunc_i128_bitcast_v4i32:
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; CHECK: buffer_load_dword v
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; CHECK: buffer_store_dword v
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define void @trunc_i128_bitcast_v4i32(i32 addrspace(1)* %out, <4 x i32> addrspace(1)* %in) {
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%ld = load <4 x i32>, <4 x i32> addrspace(1)* %in
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%bc = bitcast <4 x i32> %ld to i128
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%trunc = trunc i128 %bc to i32
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store i32 %trunc, i32 addrspace(1)* %out
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ret void
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}
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; Don't want load width reduced in this case.
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; CHECK-LABEL: {{^}}trunc_i16_bitcast_v2i16:
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; CHECK: buffer_load_dword [[VAL:v[0-9]+]]
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; CHECK: buffer_store_short [[VAL]]
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define void @trunc_i16_bitcast_v2i16(i16 addrspace(1)* %out, <2 x i16> addrspace(1)* %in) {
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%ld = load <2 x i16>, <2 x i16> addrspace(1)* %in
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%bc = bitcast <2 x i16> %ld to i32
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%trunc = trunc i32 %bc to i16
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store i16 %trunc, i16 addrspace(1)* %out
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ret void
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}
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; CHECK-LABEL: {{^}}trunc_i16_bitcast_v4i16:
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; FIXME We need to teach the dagcombiner to reduce load width for:
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; t21: v2i32,ch = load<LD8[%in(addrspace=1)]> t12, t10, undef:i64
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; t23: i64 = bitcast t21
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; t30: i16 = truncate t23
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; SI: buffer_load_dword v[[VAL:[0-9]+]]
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; VI: buffer_load_dwordx2 v{{\[}}[[VAL:[0-9]+]]
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; CHECK: buffer_store_short [[VAL]]
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define void @trunc_i16_bitcast_v4i16(i16 addrspace(1)* %out, <4 x i16> addrspace(1)* %in) {
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%ld = load <4 x i16>, <4 x i16> addrspace(1)* %in
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%bc = bitcast <4 x i16> %ld to i64
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%trunc = trunc i64 %bc to i16
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store i16 %trunc, i16 addrspace(1)* %out
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ret void
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}
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; FIXME: Don't want load width reduced in this case.
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; CHECK-LABEL: {{^}}trunc_i8_bitcast_v2i8:
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; CHECK: buffer_load_ubyte [[VAL:v[0-9]+]]
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; CHECK: buffer_store_byte [[VAL]]
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define void @trunc_i8_bitcast_v2i8(i8 addrspace(1)* %out, <2 x i8> addrspace(1)* %in) {
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%ld = load <2 x i8>, <2 x i8> addrspace(1)* %in
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%bc = bitcast <2 x i8> %ld to i16
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%trunc = trunc i16 %bc to i8
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store i8 %trunc, i8 addrspace(1)* %out
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ret void
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}
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; CHECK-LABEL: {{^}}trunc_i32_bitcast_v4i8:
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; CHECK: buffer_load_dword [[VAL:v[0-9]+]]
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; CHECK: buffer_store_byte [[VAL]]
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define void @trunc_i32_bitcast_v4i8(i8 addrspace(1)* %out, <4 x i8> addrspace(1)* %in) {
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%ld = load <4 x i8>, <4 x i8> addrspace(1)* %in
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%bc = bitcast <4 x i8> %ld to i32
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%trunc = trunc i32 %bc to i8
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store i8 %trunc, i8 addrspace(1)* %out
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ret void
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}
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; CHECK-LABEL: {{^}}trunc_i24_bitcast_v3i8:
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; CHECK: buffer_load_dword [[VAL:v[0-9]+]]
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; CHECK: buffer_store_byte [[VAL]]
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define void @trunc_i24_bitcast_v3i8(i8 addrspace(1)* %out, <3 x i8> addrspace(1)* %in) {
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%ld = load <3 x i8>, <3 x i8> addrspace(1)* %in
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%bc = bitcast <3 x i8> %ld to i24
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%trunc = trunc i24 %bc to i8
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store i8 %trunc, i8 addrspace(1)* %out
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ret void
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}
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