llvm/test/CodeGen/AMDGPU/shl_add_constant.ll
Matt Arsenault 820985a01b AMDGPU: Add sdst operand to VOP2b instructions
The VOP3 encoding of these allows any SGPR pair for the i1
output, but this was forced before to always use vcc.
This doesn't yet try to use this, but does add the operand
to the definitions so the main change is adding vcc to the
output of the VOP2 encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246358 91177308-0d34-0410-b5e6-96231b3b80d8
2015-08-29 07:16:50 +00:00

91 lines
3.4 KiB
LLVM

; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
declare i32 @llvm.r600.read.tidig.x() #1
; Test with inline immediate
; FUNC-LABEL: {{^}}shl_2_add_9_i32:
; SI: v_lshlrev_b32_e32 [[REG:v[0-9]+]], 2, {{v[0-9]+}}
; SI: v_add_i32_e32 [[RESULT:v[0-9]+]], vcc, 36, [[REG]]
; SI: buffer_store_dword [[RESULT]]
; SI: s_endpgm
define void @shl_2_add_9_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
%tid.x = tail call i32 @llvm.r600.read.tidig.x() #1
%ptr = getelementptr i32, i32 addrspace(1)* %in, i32 %tid.x
%val = load i32, i32 addrspace(1)* %ptr, align 4
%add = add i32 %val, 9
%result = shl i32 %add, 2
store i32 %result, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}shl_2_add_9_i32_2_add_uses:
; SI-DAG: v_add_i32_e32 [[ADDREG:v[0-9]+]], vcc, 9, {{v[0-9]+}}
; SI-DAG: v_lshlrev_b32_e32 [[SHLREG:v[0-9]+]], 2, {{v[0-9]+}}
; SI-DAG: buffer_store_dword [[ADDREG]]
; SI-DAG: buffer_store_dword [[SHLREG]]
; SI: s_endpgm
define void @shl_2_add_9_i32_2_add_uses(i32 addrspace(1)* %out0, i32 addrspace(1)* %out1, i32 addrspace(1)* %in) #0 {
%tid.x = tail call i32 @llvm.r600.read.tidig.x() #1
%ptr = getelementptr i32, i32 addrspace(1)* %in, i32 %tid.x
%val = load i32, i32 addrspace(1)* %ptr, align 4
%add = add i32 %val, 9
%result = shl i32 %add, 2
store i32 %result, i32 addrspace(1)* %out0, align 4
store i32 %add, i32 addrspace(1)* %out1, align 4
ret void
}
; Test with add literal constant
; FUNC-LABEL: {{^}}shl_2_add_999_i32:
; SI: v_lshlrev_b32_e32 [[REG:v[0-9]+]], 2, {{v[0-9]+}}
; SI: v_add_i32_e32 [[RESULT:v[0-9]+]], vcc, 0xf9c, [[REG]]
; SI: buffer_store_dword [[RESULT]]
; SI: s_endpgm
define void @shl_2_add_999_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
%tid.x = tail call i32 @llvm.r600.read.tidig.x() #1
%ptr = getelementptr i32, i32 addrspace(1)* %in, i32 %tid.x
%val = load i32, i32 addrspace(1)* %ptr, align 4
%shl = add i32 %val, 999
%result = shl i32 %shl, 2
store i32 %result, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}test_add_shl_add_constant:
; SI-DAG: s_load_dword [[X:s[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0xb
; SI-DAG: s_load_dword [[Y:s[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0xc
; SI: s_lshl_b32 [[SHL3:s[0-9]+]], [[X]], 3
; SI: s_add_i32 [[TMP:s[0-9]+]], [[SHL3]], [[Y]]
; SI: s_add_i32 [[RESULT:s[0-9]+]], [[TMP]], 0x3d8
; SI: v_mov_b32_e32 [[VRESULT:v[0-9]+]], [[RESULT]]
; SI: buffer_store_dword [[VRESULT]]
define void @test_add_shl_add_constant(i32 addrspace(1)* %out, i32 %x, i32 %y) #0 {
%add.0 = add i32 %x, 123
%shl = shl i32 %add.0, 3
%add.1 = add i32 %shl, %y
store i32 %add.1, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}test_add_shl_add_constant_inv:
; SI-DAG: s_load_dword [[X:s[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0xb
; SI-DAG: s_load_dword [[Y:s[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0xc
; SI: s_lshl_b32 [[SHL3:s[0-9]+]], [[X]], 3
; SI: s_add_i32 [[TMP:s[0-9]+]], [[SHL3]], [[Y]]
; SI: s_add_i32 [[RESULT:s[0-9]+]], [[TMP]], 0x3d8
; SI: v_mov_b32_e32 [[VRESULT:v[0-9]+]], [[RESULT]]
; SI: buffer_store_dword [[VRESULT]]
define void @test_add_shl_add_constant_inv(i32 addrspace(1)* %out, i32 %x, i32 %y) #0 {
%add.0 = add i32 %x, 123
%shl = shl i32 %add.0, 3
%add.1 = add i32 %y, %shl
store i32 %add.1, i32 addrspace(1)* %out, align 4
ret void
}
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }