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llvm-mirror/test/CodeGen/AMDGPU/trunc-store.ll
Matt Arsenault 14dbe93675 AMDGPU: Improve load/store of illegal types.
There was a combine before to handle the simple copy case.
Split this into handling loads and stores separately.

We might want to change how this handles some of the vector
extloads, since this can result in large code size increases.

llvm-svn: 274394
2016-07-01 22:47:50 +00:00

19 lines
798 B
LLVM

; 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_dwordx4
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_dwordx4
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
}