d99ef1144b
This reduces the number of copies and reg_sequences when using fp constant vectors. This significantly reduces the code size in local-stack-alloc-bug.ll llvm-svn: 281822
70 lines
2.9 KiB
LLVM
70 lines
2.9 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; The bitcast should be pushed through the bitcasts so the vectors can
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; be broken down and the shared components can be CSEd
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; GCN-LABEL: {{^}}store_bitcast_constant_v8i32_to_v8f32:
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; GCN: buffer_store_dwordx4
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; GCN: buffer_store_dwordx4
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; GCN-NOT: v_mov_b32
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; GCN: buffer_store_dwordx4
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; GCN-NOT: v_mov_b32
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; GCN: buffer_store_dwordx4
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define void @store_bitcast_constant_v8i32_to_v8f32(<8 x float> addrspace(1)* %out, <8 x i32> %vec) {
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%vec0.bc = bitcast <8 x i32> <i32 7, i32 7, i32 7, i32 7, i32 7, i32 7, i32 7, i32 8> to <8 x float>
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store volatile <8 x float> %vec0.bc, <8 x float> addrspace(1)* %out
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%vec1.bc = bitcast <8 x i32> <i32 7, i32 7, i32 7, i32 7, i32 7, i32 7, i32 7, i32 9> to <8 x float>
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store volatile <8 x float> %vec1.bc, <8 x float> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}store_bitcast_constant_v4i64_to_v8f32:
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; GCN: buffer_store_dwordx4
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; GCN: buffer_store_dwordx4
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; GCN-NOT: v_mov_b32
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; GCN: buffer_store_dwordx4
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; GCN-NOT: v_mov_b32
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; GCN: buffer_store_dwordx4
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define void @store_bitcast_constant_v4i64_to_v8f32(<8 x float> addrspace(1)* %out, <4 x i64> %vec) {
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%vec0.bc = bitcast <4 x i64> <i64 7, i64 7, i64 7, i64 8> to <8 x float>
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store volatile <8 x float> %vec0.bc, <8 x float> addrspace(1)* %out
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%vec1.bc = bitcast <4 x i64> <i64 7, i64 7, i64 7, i64 9> to <8 x float>
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store volatile <8 x float> %vec1.bc, <8 x float> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}store_bitcast_constant_v4i64_to_v4f64:
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; GCN: buffer_store_dwordx4
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; GCN: buffer_store_dwordx4
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; GCN-NOT: v_mov_b32
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; GCN: buffer_store_dwordx4
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; GCN-NOT: v_mov_b32
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; GCN: buffer_store_dwordx4
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define void @store_bitcast_constant_v4i64_to_v4f64(<4 x double> addrspace(1)* %out, <4 x i64> %vec) {
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%vec0.bc = bitcast <4 x i64> <i64 7, i64 7, i64 7, i64 8> to <4 x double>
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store volatile <4 x double> %vec0.bc, <4 x double> addrspace(1)* %out
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%vec1.bc = bitcast <4 x i64> <i64 7, i64 7, i64 7, i64 9> to <4 x double>
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store volatile <4 x double> %vec1.bc, <4 x double> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}store_bitcast_constant_v8i32_to_v16i16:
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; GCN: buffer_store_dwordx4
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; GCN: buffer_store_dwordx4
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; GCN-NOT: v_mov_b32
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; GCN: buffer_store_dwordx4
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; GCN-NOT: v_mov_b32
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; GCN: buffer_store_dwordx4
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define void @store_bitcast_constant_v8i32_to_v16i16(<8 x float> addrspace(1)* %out, <16 x i16> %vec) {
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%vec0.bc = bitcast <16 x i16> <i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 8> to <8 x float>
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store volatile <8 x float> %vec0.bc, <8 x float> addrspace(1)* %out
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%vec1.bc = bitcast <16 x i16> <i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 7, i16 9> to <8 x float>
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store volatile <8 x float> %vec1.bc, <8 x float> addrspace(1)* %out
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ret void
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}
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