llvm/test/CodeGen/R600/sext-eliminate.ll
Jan Vesely cef793e8c7 SelectionDAG: Add sext_inreg optimizations
v2: use dyn_cast
    fixup comments
v3: use cast

Reviewed-by: Matt Arsenault <arsenm2@gmail.com>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220044 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-17 14:45:25 +00:00

27 lines
826 B
LLVM

; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
; FUNC-LABEL: {{^}}sext_in_reg_i1_i32_add:
; EG: MEM_{{.*}} STORE_{{.*}} [[RES:T[0-9]+\.[XYZW]]], [[ADDR:T[0-9]+.[XYZW]]]
; EG: SUB_INT {{[* ]*}}[[RES]]
; EG-NOT: BFE
define void @sext_in_reg_i1_i32_add(i32 addrspace(1)* %out, i1 %a, i32 %b) {
%sext = sext i1 %a to i32
%res = add i32 %b, %sext
store i32 %res, i32 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}sext_in_reg_i1_i32_sub:
; EG: MEM_{{.*}} STORE_{{.*}} [[RES:T[0-9]+\.[XYZW]]], [[ADDR:T[0-9]+.[XYZW]]]
; EG: ADD_INT {{[* ]*}}[[RES]]
; EG-NOT: BFE
define void @sext_in_reg_i1_i32_sub(i32 addrspace(1)* %out, i1 %a, i32 %b) {
%sext = sext i1 %a to i32
%res = sub i32 %b, %sext
store i32 %res, i32 addrspace(1)* %out
ret void
}