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R600: Expand TruncStore i64 -> {i16,i8}

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207844 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2014-05-02 15:41:46 +00:00
parent 9b22626068
commit 1d6859256c
2 changed files with 42 additions and 0 deletions
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2
lib/Target/R600/AMDGPUISelLowering.cpp
View File

@ -145,6 +145,8 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
// handle 64-bit stores.
setTruncStoreAction(MVT::v4i32, MVT::v4i16, Expand);
setTruncStoreAction(MVT::i64, MVT::i16, Expand);
setTruncStoreAction(MVT::i64, MVT::i8, Expand);
setTruncStoreAction(MVT::i64, MVT::i1, Expand);
setTruncStoreAction(MVT::v2i64, MVT::v2i1, Expand);
setTruncStoreAction(MVT::v4i64, MVT::v4i1, Expand);

40
test/CodeGen/R600/store.ll
View File

@ -177,6 +177,26 @@ entry:
ret void
}
; FUNC-LABEL: @store_i64_i8
; EG-CHECK: MEM_RAT MSKOR
; SI-CHECK: BUFFER_STORE_BYTE
define void @store_i64_i8(i8 addrspace(1)* %out, i64 %in) {
entry:
%0 = trunc i64 %in to i8
store i8 %0, i8 addrspace(1)* %out
ret void
}
; FUNC-LABEL: @store_i64_i16
; EG-CHECK: MEM_RAT MSKOR
; SI-CHECK: BUFFER_STORE_SHORT
define void @store_i64_i16(i16 addrspace(1)* %out, i64 %in) {
entry:
%0 = trunc i64 %in to i16
store i16 %0, i16 addrspace(1)* %out
ret void
}
;===------------------------------------------------------------------------===;
; Local Address Space
;===------------------------------------------------------------------------===;
@ -272,6 +292,26 @@ entry:
ret void
}
; FUNC-LABEL: @store_local_i64_i8
; EG-CHECK: LDS_BYTE_WRITE
; SI-CHECK: DS_WRITE_B8
define void @store_local_i64_i8(i8 addrspace(3)* %out, i64 %in) {
entry:
%0 = trunc i64 %in to i8
store i8 %0, i8 addrspace(3)* %out
ret void
}
; FUNC-LABEL: @store_local_i64_i16
; EG-CHECK: LDS_SHORT_WRITE
; SI-CHECK: DS_WRITE_B16
define void @store_local_i64_i16(i16 addrspace(3)* %out, i64 %in) {
entry:
%0 = trunc i64 %in to i16
store i16 %0, i16 addrspace(3)* %out
ret void
}
; The stores in this function are combined by the optimizer to create a
; 64-bit store with 32-bit alignment. This is legal for SI and the legalizer
; should not try to split the 64-bit store back into 2 32-bit stores.