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Revert "[AMDGPU] performAddCombine should run after DAG is legalized."
This reverts commit 6b97d2995566b4dddd6bf0d75579ff44501d4494. llvm-svn: 331371
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@ -6755,7 +6755,7 @@ SDValue SITargetLowering::performAddCombine(SDNode *N,
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return SDValue();
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}
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if (VT != MVT::i32 || !DCI.isAfterLegalizeDAG())
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if (VT != MVT::i32)
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return SDValue();
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// add x, zext (setcc) => addcarry x, 0, setcc
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@ -1,13 +1,10 @@
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; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; RUN: llc -march=amdgcn -mcpu=gfx902 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX9 %s
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; GCN-LABEL: {{^}}add1:
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; GCN: v_cmp_gt_u32_e{{32|64}} [[CC:[^,]+]], v{{[0-9]+}}, v{{[0-9]+}}
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; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]]
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; GCN-NOT: v_cndmask
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; GFX9-LABEL: {{^}}add1:
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; GFX9: v_addc_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @add1(i32 addrspace(1)* nocapture %arg) {
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bb:
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%x = tail call i32 @llvm.amdgcn.workitem.id.x()
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@ -21,33 +18,11 @@ bb:
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ret void
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}
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; GCN-LABEL: {{^}}add1_i16:
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; GCN: v_cmp_gt_u32_e{{32|64}} [[CC:[^,]+]], v{{[0-9]+}}, v{{[0-9]+}}
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; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]]
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; GCN-NOT: v_cndmask
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; GFX9-LABEL: {{^}}add1_i16:
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; GFX9: v_addc_co_u32_e32 v{{[0-9]+}}, vcc
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define i16 @add1_i16(i32 addrspace(1)* nocapture %arg, i16 addrspace(1)* nocapture %dst) {
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bb:
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%x = tail call i32 @llvm.amdgcn.workitem.id.x()
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%y = tail call i32 @llvm.amdgcn.workitem.id.y()
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %arg, i32 %x
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%v = load i32, i32 addrspace(1)* %gep, align 4
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%cmp = icmp ugt i32 %x, %y
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%ext = zext i1 %cmp to i32
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%add = add i32 %v, %ext
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%trunc = trunc i32 %add to i16
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ret i16 %trunc
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}
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; GCN-LABEL: {{^}}sub1:
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; GCN: v_cmp_gt_u32_e32 vcc, v{{[0-9]+}}, v{{[0-9]+}}
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; GCN: v_subbrev_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
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; GCN-NOT: v_cndmask
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; GFX9-LABEL: {{^}}sub1:
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; GFX9: v_subbrev_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @sub1(i32 addrspace(1)* nocapture %arg) {
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bb:
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%x = tail call i32 @llvm.amdgcn.workitem.id.x()
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@ -67,8 +42,6 @@ bb:
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; GCN-NOT: v_cndmask
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; GCN-NOT: v_add
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; GFX9-LABEL: {{^}}add_adde:
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; GFX9: v_addc_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @add_adde(i32 addrspace(1)* nocapture %arg, i32 %a) {
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bb:
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%x = tail call i32 @llvm.amdgcn.workitem.id.x()
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@ -89,8 +62,6 @@ bb:
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; GCN-NOT: v_cndmask
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; GCN-NOT: v_add
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; GFX9-LABEL: {{^}}adde_add:
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; GFX9: v_addc_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @adde_add(i32 addrspace(1)* nocapture %arg, i32 %a) {
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bb:
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%x = tail call i32 @llvm.amdgcn.workitem.id.x()
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@ -111,8 +82,6 @@ bb:
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; GCN-NOT: v_cndmask
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; GCN-NOT: v_sub
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; GFX9-LABEL: {{^}}sub_sube:
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; GFX9: v_subb_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @sub_sube(i32 addrspace(1)* nocapture %arg, i32 %a) {
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bb:
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%x = tail call i32 @llvm.amdgcn.workitem.id.x()
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@ -133,8 +102,6 @@ bb:
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; GCN-NOT: v_cndmask
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; GCN-NOT: v_sub
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; GFX9-LABEL: {{^}}sube_sub:
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; GFX9: v_subb_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @sube_sub(i32 addrspace(1)* nocapture %arg, i32 %a) {
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bb:
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%x = tail call i32 @llvm.amdgcn.workitem.id.x()
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@ -154,8 +121,6 @@ bb:
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; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]]
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; GCN-NOT: v_cndmask
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; GFX9-LABEL: {{^}}zext_flclass:
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; GFX9: v_addc_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @zext_flclass(i32 addrspace(1)* nocapture %arg, float %x) {
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bb:
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%id = tail call i32 @llvm.amdgcn.workitem.id.x()
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@ -173,8 +138,6 @@ bb:
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; GCN: v_subbrev_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
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; GCN-NOT: v_cndmask
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; GFX9-LABEL: {{^}}sext_flclass:
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; GFX9: v_subbrev_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @sext_flclass(i32 addrspace(1)* nocapture %arg, float %x) {
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bb:
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%id = tail call i32 @llvm.amdgcn.workitem.id.x()
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@ -192,8 +155,6 @@ bb:
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; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]]
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; GCN-NOT: v_cndmask
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; GFX9-LABEL: {{^}}add_and:
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; GFX9: v_addc_co_u32_e32 v{{[0-9]+}}, vcc
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define amdgpu_kernel void @add_and(i32 addrspace(1)* nocapture %arg) {
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bb:
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%x = tail call i32 @llvm.amdgcn.workitem.id.x()
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