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[AMDGPU] A trivial fix for a buildbot failure caused by "commit 224a839fcbbead221f872cd32a1dd0c308d37299". 

Author: FarhanaAleen
llvm-svn: 331383
This commit is contained in:
Farhana Aleen 2018-05-02 18:16:39 +00:00
parent 716d9949f6
commit 07e612340f
2 changed files with 40 additions and 1 deletions
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2
llvm/lib/Target/AMDGPU/SIISelLowering.cpp
View File

@ -6755,7 +6755,7 @@ SDValue SITargetLowering::performAddCombine(SDNode *N,
return SDValue();
}
if (VT != MVT::i32)
if (VT != MVT::i32 || !DCI.isAfterLegalizeDAG())
return SDValue();
// add x, zext (setcc) => addcarry x, 0, setcc

39
llvm/test/CodeGen/AMDGPU/combine-cond-add-sub.ll
View File

@ -1,10 +1,13 @@
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; RUN: llc -march=amdgcn -mcpu=gfx902 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX9 %s
; GCN-LABEL: {{^}}add1:
; GCN: v_cmp_gt_u32_e{{32|64}} [[CC:[^,]+]], v{{[0-9]+}}, v{{[0-9]+}}
; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]]
; GCN-NOT: v_cndmask
; GFX9-LABEL: {{^}}add1:
; GFX9: v_addc_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define amdgpu_kernel void @add1(i32 addrspace(1)* nocapture %arg) {
bb:
%x = tail call i32 @llvm.amdgcn.workitem.id.x()
@ -18,11 +21,33 @@ bb:
ret void
}
; GCN-LABEL: {{^}}add1_i16:
; GCN: v_cmp_gt_u32_e{{32|64}} [[CC:[^,]+]], v{{[0-9]+}}, v{{[0-9]+}}
; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]]
; GCN-NOT: v_cndmask
; GFX9-LABEL: {{^}}add1_i16:
; GFX9: v_addc_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define i16 @add1_i16(i32 addrspace(1)* nocapture %arg, i16 addrspace(1)* nocapture %dst) {
bb:
%x = tail call i32 @llvm.amdgcn.workitem.id.x()
%y = tail call i32 @llvm.amdgcn.workitem.id.y()
%gep = getelementptr inbounds i32, i32 addrspace(1)* %arg, i32 %x
%v = load i32, i32 addrspace(1)* %gep, align 4
%cmp = icmp ugt i32 %x, %y
%ext = zext i1 %cmp to i32
%add = add i32 %v, %ext
%trunc = trunc i32 %add to i16
ret i16 %trunc
}
; GCN-LABEL: {{^}}sub1:
; GCN: v_cmp_gt_u32_e32 vcc, v{{[0-9]+}}, v{{[0-9]+}}
; GCN: v_subbrev_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
; GCN-NOT: v_cndmask
; GFX9-LABEL: {{^}}sub1:
; GFX9: v_subbrev_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define amdgpu_kernel void @sub1(i32 addrspace(1)* nocapture %arg) {
bb:
%x = tail call i32 @llvm.amdgcn.workitem.id.x()
@ -42,6 +67,8 @@ bb:
; GCN-NOT: v_cndmask
; GCN-NOT: v_add
; GFX9-LABEL: {{^}}add_adde:
; GFX9: v_addc_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define amdgpu_kernel void @add_adde(i32 addrspace(1)* nocapture %arg, i32 %a) {
bb:
%x = tail call i32 @llvm.amdgcn.workitem.id.x()
@ -62,6 +89,8 @@ bb:
; GCN-NOT: v_cndmask
; GCN-NOT: v_add
; GFX9-LABEL: {{^}}adde_add:
; GFX9: v_addc_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define amdgpu_kernel void @adde_add(i32 addrspace(1)* nocapture %arg, i32 %a) {
bb:
%x = tail call i32 @llvm.amdgcn.workitem.id.x()
@ -82,6 +111,8 @@ bb:
; GCN-NOT: v_cndmask
; GCN-NOT: v_sub
; GFX9-LABEL: {{^}}sub_sube:
; GFX9: v_subb_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define amdgpu_kernel void @sub_sube(i32 addrspace(1)* nocapture %arg, i32 %a) {
bb:
%x = tail call i32 @llvm.amdgcn.workitem.id.x()
@ -102,6 +133,8 @@ bb:
; GCN-NOT: v_cndmask
; GCN-NOT: v_sub
; GFX9-LABEL: {{^}}sube_sub:
; GFX9: v_subb_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define amdgpu_kernel void @sube_sub(i32 addrspace(1)* nocapture %arg, i32 %a) {
bb:
%x = tail call i32 @llvm.amdgcn.workitem.id.x()
@ -121,6 +154,8 @@ bb:
; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]]
; GCN-NOT: v_cndmask
; GFX9-LABEL: {{^}}zext_flclass:
; GFX9: v_addc_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define amdgpu_kernel void @zext_flclass(i32 addrspace(1)* nocapture %arg, float %x) {
bb:
%id = tail call i32 @llvm.amdgcn.workitem.id.x()
@ -138,6 +173,8 @@ bb:
; GCN: v_subbrev_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
; GCN-NOT: v_cndmask
; GFX9-LABEL: {{^}}sext_flclass:
; GFX9: v_subbrev_co_u32_e32 v{{[0-9]+}}, vcc
define amdgpu_kernel void @sext_flclass(i32 addrspace(1)* nocapture %arg, float %x) {
bb:
%id = tail call i32 @llvm.amdgcn.workitem.id.x()
@ -155,6 +192,8 @@ bb:
; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]]
; GCN-NOT: v_cndmask
; GFX9-LABEL: {{^}}add_and:
; GFX9: v_addc_co_u32_e{{32|64}} v{{[0-9]+}}, vcc
define amdgpu_kernel void @add_and(i32 addrspace(1)* nocapture %arg) {
bb:
%x = tail call i32 @llvm.amdgcn.workitem.id.x()