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R600/SI: Fix i64 truncate to i1

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228273 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault 2015-02-05 06:05:13 +00:00
parent 27fa7bdd07
commit 81eb6ca158
2 changed files with 37 additions and 0 deletions
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6
lib/Target/R600/SIInstructions.td
View File

@ -3230,6 +3230,12 @@ def : Pat <
(V_CMP_EQ_I32_e64 (V_AND_B32_e64 (i32 1), $a), 1)
>;
def : Pat <
(i1 (trunc i64:$a)),
(V_CMP_EQ_I32_e64 (V_AND_B32_e64 (i32 1),
(EXTRACT_SUBREG $a, sub0)), 1)
>;
def : Pat <
(i32 (bswap i32:$a)),
(V_BFI_B32 (S_MOV_B32 0x00ff00ff),

31
test/CodeGen/R600/trunc.ll
View File

@ -1,6 +1,8 @@
; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI %s
; RUN: llc -march=r600 -mcpu=cypress < %s | FileCheck -check-prefix=EG %s
declare i32 @llvm.r600.read.tidig.x() nounwind readnone
define void @trunc_i64_to_i32_store(i32 addrspace(1)* %out, i64 %in) {
; SI-LABEL: {{^}}trunc_i64_to_i32_store:
; SI: s_load_dword [[SLOAD:s[0-9]+]], s[0:1], 0xb
@ -67,3 +69,32 @@ define void @sgpr_trunc_i32_to_i1(i32 addrspace(1)* %out, i32 %a) {
store i32 %result, i32 addrspace(1)* %out, align 4
ret void
}
; SI-LABEL: {{^}}s_trunc_i64_to_i1:
; SI: s_load_dwordx2 s{{\[}}[[SLO:[0-9]+]]:{{[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0xb
; SI: v_and_b32_e64 [[MASKED:v[0-9]+]], 1, s[[SLO]]
; SI: v_cmp_eq_i32_e64 [[CMP:s\[[0-9]+:[0-9]+\]]], [[MASKED]], 1
; SI: v_cndmask_b32_e64 {{v[0-9]+}}, -12, 63, [[CMP]]
define void @s_trunc_i64_to_i1(i32 addrspace(1)* %out, i64 %x) {
%trunc = trunc i64 %x to i1
%sel = select i1 %trunc, i32 63, i32 -12
store i32 %sel, i32 addrspace(1)* %out
ret void
}
; SI-LABEL: {{^}}v_trunc_i64_to_i1:
; SI: buffer_load_dwordx2 v{{\[}}[[VLO:[0-9]+]]:{{[0-9]+\]}}
; SI: v_and_b32_e32 [[MASKED:v[0-9]+]], 1, v[[VLO]]
; SI: v_cmp_eq_i32_e64 [[CMP:s\[[0-9]+:[0-9]+\]]], [[MASKED]], 1
; SI: v_cndmask_b32_e64 {{v[0-9]+}}, -12, 63, [[CMP]]
define void @v_trunc_i64_to_i1(i32 addrspace(1)* %out, i64 addrspace(1)* %in) {
%tid = call i32 @llvm.r600.read.tidig.x() nounwind readnone
%gep = getelementptr i64 addrspace(1)* %in, i32 %tid
%out.gep = getelementptr i32 addrspace(1)* %out, i32 %tid
%x = load i64 addrspace(1)* %gep
%trunc = trunc i64 %x to i1
%sel = select i1 %trunc, i32 63, i32 -12
store i32 %sel, i32 addrspace(1)* %out.gep
ret void
}