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AMDGPU: Fix v16i32 to v16i8 truncstore

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llvm-svn: 243731
This commit is contained in:
Matt Arsenault 2015-07-31 04:12:04 +00:00
parent 71a4e8ccbf
commit 6405908075
2 changed files with 49 additions and 0 deletions
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1
lib/Target/AMDGPU/SIISelLowering.cpp
View File

@ -157,6 +157,7 @@ SITargetLowering::SITargetLowering(TargetMachine &TM,
setTruncStoreAction(MVT::i64, MVT::i32, Expand);
setTruncStoreAction(MVT::v8i32, MVT::v8i16, Expand);
setTruncStoreAction(MVT::v16i32, MVT::v16i8, Expand);
setTruncStoreAction(MVT::v16i32, MVT::v16i16, Expand);
setOperationAction(ISD::LOAD, MVT::i1, Custom);

48
test/CodeGen/AMDGPU/trunc-store.ll Normal file
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@ -0,0 +1,48 @@
; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; FUNC-LABEL: {{^}}truncstore_arg_v16i32_to_v16i8:
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
define void @truncstore_arg_v16i32_to_v16i8(<16 x i8> addrspace(1)* %out, <16 x i32> %in) {
%trunc = trunc <16 x i32> %in to <16 x i8>
store <16 x i8> %trunc, <16 x i8> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}truncstore_arg_v16i64_to_v16i8:
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
; SI: buffer_store_byte
define void @truncstore_arg_v16i64_to_v16i8(<16 x i8> addrspace(1)* %out, <16 x i64> %in) {
%trunc = trunc <16 x i64> %in to <16 x i8>
store <16 x i8> %trunc, <16 x i8> addrspace(1)* %out
ret void
}