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Differential D76861

[AMDGPU] Fix getEUsPerCU for gfx10 in CU mode
ClosedPublic

Authored by foad on Mar 26 2020, 9:13 AM.

Details

Reviewers
arsenm
rampitec
nhaehnle
dstuttard
tpr
Commits
rGa6dfd827e588: [AMDGPU] Fix getEUsPerCU for gfx10 in CU mode
Summary

"Per CU" is a bit simplistic for gfx10, but I couldn't think of a better
name.

Diff Detail

Event Timeline

foad created this revision.Mar 26 2020, 9:13 AM
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foad added a comment.Mar 26 2020, 9:16 AM

This affects the calculation of how many VGPRs we can use for a gfx10 cu-mode compute shader that specifies amdgpu-flat-work-group-size. How should I test it?

nhaehnle added a comment.Mar 26 2020, 9:49 AM

Seems reasonable, but it needs a test case.

Harbormaster failed remote builds in B50558: Diff 252876!Mar 26 2020, 10:18 AM
foad updated this revision to Diff 253103.Mar 27 2020, 6:52 AM

Add test.

Harbormaster failed remote builds in B50679: Diff 253103!Mar 27 2020, 8:31 AM
rampitec accepted this revision.Mar 27 2020, 11:43 AM

LGTM

This revision is now accepted and ready to land.Mar 27 2020, 11:43 AM
Closed by commit rGa6dfd827e588: [AMDGPU] Fix getEUsPerCU for gfx10 in CU mode (authored by foad). · Explain WhyMar 27 2020, 1:44 PM
This revision was automatically updated to reflect the committed changes.
LuoYuanke added a subscriber: LuoYuanke.Aug 15 2022, 6:16 AM
LuoYuanke added inline comments.
llvm/test/CodeGen/AMDGPU/attr-amdgpu-flat-work-group-size-vgpr-limit.ll
3

Specifying -regalloc=fast is not reliable. With fast register allocation, LIS = getAnalysisIfAvailable<LiveIntervals>(); get nullptr in "si-lower-sgpr-spills" pass, so the slot index is not created in the pass for new inserted instructions. When verifying the machine intruction, it fails on checking slot index. It can be reproduced with below test case. Is it possible to use greedy-ra and reduce the compiling time for this test case?

define internal void @use256vgprs() {
  %v0 = call i32 asm sideeffect "; def $0", "=v"()
  %v1 = call i32 asm sideeffect "; def $0", "=v"()
  call void asm sideeffect "; use $0", "v"(i32 %v0)
  call void asm sideeffect "; use $0", "v"(i32 %v1)
  ret void
}

define amdgpu_kernel void @f256() #256 {
  call void @use256vgprs()
  ret void
}
attributes #256 = { nounwind "amdgpu-flat-work-group-size"="256,256" }

define amdgpu_kernel void @f512() #512 {
  call void @foo()
  call void @use256vgprs()
  ret void
}
attributes #512 = { nounwind "amdgpu-flat-work-group-size"="512,512" }

define amdgpu_kernel void @f1024() #1024 {
  call void @foo()
  call void @use256vgprs()
  ret void
}

attributes #1024 = { nounwind "amdgpu-flat-work-group-size"="1024,1024" }

declare void @foo()
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foad added inline comments.Aug 23 2022, 6:00 AM
llvm/test/CodeGen/AMDGPU/attr-amdgpu-flat-work-group-size-vgpr-limit.ll
3

That sounds like a bug in SILowerSGPRSpills. It should not claim to preserve SlotIndexes if it does not preserve them.

arsenm added inline comments.Sep 15 2022, 12:08 PM
llvm/test/CodeGen/AMDGPU/attr-amdgpu-flat-work-group-size-vgpr-limit.ll
3

The pass is only updating SlotIndexes through LiveIntervals, assuming they come as a pair. With -verify-machineinstrs, somehow we end up in a situation with SlotIndexes and without LiveIntervals

arsenm added inline comments.Sep 15 2022, 12:10 PM
llvm/test/CodeGen/AMDGPU/attr-amdgpu-flat-work-group-size-vgpr-limit.ll
3

Apparently StackColoring runs at -O0 and only uses SlotIndexes

arsenm added inline comments.Sep 15 2022, 1:11 PM
llvm/test/CodeGen/AMDGPU/attr-amdgpu-flat-work-group-size-vgpr-limit.ll
3

D133970

Revision Contents

PathSize
llvm/
lib/
Target/
AMDGPU/
Utils/
7 lines
test/
CodeGen/
AMDGPU/
559 lines

Diff 253212

llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

Show First 20 Lines • Show All 262 Lines • ▼ Show 20 Lines if (STI->getFeatureBits().test(FeatureLocalMemorySize32768))
return 32768; return 32768;
if (STI->getFeatureBits().test(FeatureLocalMemorySize65536)) if (STI->getFeatureBits().test(FeatureLocalMemorySize65536))
return 65536; return 65536;
return 0; return 0;
} }
unsigned getEUsPerCU(const MCSubtargetInfo *STI) { unsigned getEUsPerCU(const MCSubtargetInfo *STI) {
// "Per CU" really means "per whatever functional block the waves of a
// workgroup must share". For gfx10 in CU mode this is the CU, which contains
// two SIMDs.
if (isGFX10(*STI) && STI->getFeatureBits().test(FeatureCuMode))
return 2;
// Pre-gfx10 a CU contains four SIMDs. For gfx10 in WGP mode the WGP contains
// two CUs, so a total of four SIMDs.
return 4; return 4;
} }
unsigned getMaxWorkGroupsPerCU(const MCSubtargetInfo *STI, unsigned getMaxWorkGroupsPerCU(const MCSubtargetInfo *STI,
unsigned FlatWorkGroupSize) { unsigned FlatWorkGroupSize) {
assert(FlatWorkGroupSize != 0); assert(FlatWorkGroupSize != 0);
if (STI->getTargetTriple().getArch() != Triple::amdgcn) if (STI->getTargetTriple().getArch() != Triple::amdgcn)
return 8; return 8;
▲ Show 20 Lines • Show All 1,106 Lines • Show Last 20 Lines

llvm/test/CodeGen/AMDGPU/attr-amdgpu-flat-work-group-size-vgpr-limit.ll

  • This file was added.
; -enable-misched=false makes the register usage more predictable
; -regalloc=fast just makes the test run faster
; RUN: llc -march=amdgcn -mcpu=gfx900 -amdgpu-function-calls=false -enable-misched=false -regalloc=fast < %s | FileCheck %s --check-prefixes=GCN,GFX9
LuoYuankeUnsubmitted
Not Done
ReplyInline Actions

Specifying -regalloc=fast is not reliable. With fast register allocation, LIS = getAnalysisIfAvailable<LiveIntervals>(); get nullptr in "si-lower-sgpr-spills" pass, so the slot index is not created in the pass for new inserted instructions. When verifying the machine intruction, it fails on checking slot index. It can be reproduced with below test case. Is it possible to use greedy-ra and reduce the compiling time for this test case?

define internal void @use256vgprs() {
  %v0 = call i32 asm sideeffect "; def $0", "=v"()
  %v1 = call i32 asm sideeffect "; def $0", "=v"()
  call void asm sideeffect "; use $0", "v"(i32 %v0)
  call void asm sideeffect "; use $0", "v"(i32 %v1)
  ret void
}

define amdgpu_kernel void @f256() #256 {
  call void @use256vgprs()
  ret void
}
attributes #256 = { nounwind "amdgpu-flat-work-group-size"="256,256" }

define amdgpu_kernel void @f512() #512 {
  call void @foo()
  call void @use256vgprs()
  ret void
}
attributes #512 = { nounwind "amdgpu-flat-work-group-size"="512,512" }

define amdgpu_kernel void @f1024() #1024 {
  call void @foo()
  call void @use256vgprs()
  ret void
}

attributes #1024 = { nounwind "amdgpu-flat-work-group-size"="1024,1024" }

declare void @foo()
LuoYuanke: Specifying `-regalloc=fast` is not reliable. With fast register allocation, `LIS =…
foadAuthorUnsubmitted
Done
ReplyInline Actions

That sounds like a bug in SILowerSGPRSpills. It should not claim to preserve SlotIndexes if it does not preserve them.

foad: That sounds like a bug in SILowerSGPRSpills. It should not claim to preserve SlotIndexes if it…
arsenmUnsubmitted
Not Done
ReplyInline Actions

The pass is only updating SlotIndexes through LiveIntervals, assuming they come as a pair. With -verify-machineinstrs, somehow we end up in a situation with SlotIndexes and without LiveIntervals

arsenm: The pass is only updating SlotIndexes through LiveIntervals, assuming they come as a pair. With…
arsenmUnsubmitted
Not Done
ReplyInline Actions

Apparently StackColoring runs at -O0 and only uses SlotIndexes

arsenm: Apparently StackColoring runs at -O0 and only uses SlotIndexes
arsenmUnsubmitted
Not Done
ReplyInline Actions

D133970

arsenm: D133970
; RUN: llc -march=amdgcn -mcpu=gfx1010 -amdgpu-function-calls=false -enable-misched=false -regalloc=fast < %s | FileCheck %s --check-prefixes=GCN,GFX10WGP-WAVE32
; RUN: llc -march=amdgcn -mcpu=gfx1010 -mattr=+wavefrontsize64 -amdgpu-function-calls=false -enable-misched=false -regalloc=fast < %s | FileCheck %s --check-prefixes=GCN,GFX10WGP-WAVE64
; RUN: llc -march=amdgcn -mcpu=gfx1010 -mattr=+cumode -amdgpu-function-calls=false -enable-misched=false -regalloc=fast < %s | FileCheck %s --check-prefixes=GCN,GFX10CU-WAVE32
; RUN: llc -march=amdgcn -mcpu=gfx1010 -mattr=+cumode,+wavefrontsize64 -amdgpu-function-calls=false -enable-misched=false -regalloc=fast < %s | FileCheck %s --check-prefixes=GCN,GFX10CU-WAVE64
define internal void @use256vgprs() {
%v0 = call i32 asm sideeffect "; def $0", "=v"()
%v1 = call i32 asm sideeffect "; def $0", "=v"()
%v2 = call i32 asm sideeffect "; def $0", "=v"()
%v3 = call i32 asm sideeffect "; def $0", "=v"()
%v4 = call i32 asm sideeffect "; def $0", "=v"()
%v5 = call i32 asm sideeffect "; def $0", "=v"()
%v6 = call i32 asm sideeffect "; def $0", "=v"()
%v7 = call i32 asm sideeffect "; def $0", "=v"()
%v8 = call i32 asm sideeffect "; def $0", "=v"()
%v9 = call i32 asm sideeffect "; def $0", "=v"()
%v10 = call i32 asm sideeffect "; def $0", "=v"()
%v11 = call i32 asm sideeffect "; def $0", "=v"()
%v12 = call i32 asm sideeffect "; def $0", "=v"()
%v13 = call i32 asm sideeffect "; def $0", "=v"()
%v14 = call i32 asm sideeffect "; def $0", "=v"()
%v15 = call i32 asm sideeffect "; def $0", "=v"()
%v16 = call i32 asm sideeffect "; def $0", "=v"()
%v17 = call i32 asm sideeffect "; def $0", "=v"()
%v18 = call i32 asm sideeffect "; def $0", "=v"()
%v19 = call i32 asm sideeffect "; def $0", "=v"()
%v20 = call i32 asm sideeffect "; def $0", "=v"()
%v21 = call i32 asm sideeffect "; def $0", "=v"()
%v22 = call i32 asm sideeffect "; def $0", "=v"()
%v23 = call i32 asm sideeffect "; def $0", "=v"()
%v24 = call i32 asm sideeffect "; def $0", "=v"()
%v25 = call i32 asm sideeffect "; def $0", "=v"()
%v26 = call i32 asm sideeffect "; def $0", "=v"()
%v27 = call i32 asm sideeffect "; def $0", "=v"()
%v28 = call i32 asm sideeffect "; def $0", "=v"()
%v29 = call i32 asm sideeffect "; def $0", "=v"()
%v30 = call i32 asm sideeffect "; def $0", "=v"()
%v31 = call i32 asm sideeffect "; def $0", "=v"()
%v32 = call i32 asm sideeffect "; def $0", "=v"()
%v33 = call i32 asm sideeffect "; def $0", "=v"()
%v34 = call i32 asm sideeffect "; def $0", "=v"()
%v35 = call i32 asm sideeffect "; def $0", "=v"()
%v36 = call i32 asm sideeffect "; def $0", "=v"()
%v37 = call i32 asm sideeffect "; def $0", "=v"()
%v38 = call i32 asm sideeffect "; def $0", "=v"()
%v39 = call i32 asm sideeffect "; def $0", "=v"()
%v40 = call i32 asm sideeffect "; def $0", "=v"()
%v41 = call i32 asm sideeffect "; def $0", "=v"()
%v42 = call i32 asm sideeffect "; def $0", "=v"()
%v43 = call i32 asm sideeffect "; def $0", "=v"()
%v44 = call i32 asm sideeffect "; def $0", "=v"()
%v45 = call i32 asm sideeffect "; def $0", "=v"()
%v46 = call i32 asm sideeffect "; def $0", "=v"()
%v47 = call i32 asm sideeffect "; def $0", "=v"()
%v48 = call i32 asm sideeffect "; def $0", "=v"()
%v49 = call i32 asm sideeffect "; def $0", "=v"()
%v50 = call i32 asm sideeffect "; def $0", "=v"()
%v51 = call i32 asm sideeffect "; def $0", "=v"()
%v52 = call i32 asm sideeffect "; def $0", "=v"()
%v53 = call i32 asm sideeffect "; def $0", "=v"()
%v54 = call i32 asm sideeffect "; def $0", "=v"()
%v55 = call i32 asm sideeffect "; def $0", "=v"()
%v56 = call i32 asm sideeffect "; def $0", "=v"()
%v57 = call i32 asm sideeffect "; def $0", "=v"()
%v58 = call i32 asm sideeffect "; def $0", "=v"()
%v59 = call i32 asm sideeffect "; def $0", "=v"()
%v60 = call i32 asm sideeffect "; def $0", "=v"()
%v61 = call i32 asm sideeffect "; def $0", "=v"()
%v62 = call i32 asm sideeffect "; def $0", "=v"()
%v63 = call i32 asm sideeffect "; def $0", "=v"()
%v64 = call i32 asm sideeffect "; def $0", "=v"()
%v65 = call i32 asm sideeffect "; def $0", "=v"()
%v66 = call i32 asm sideeffect "; def $0", "=v"()
%v67 = call i32 asm sideeffect "; def $0", "=v"()
%v68 = call i32 asm sideeffect "; def $0", "=v"()
%v69 = call i32 asm sideeffect "; def $0", "=v"()
%v70 = call i32 asm sideeffect "; def $0", "=v"()
%v71 = call i32 asm sideeffect "; def $0", "=v"()
%v72 = call i32 asm sideeffect "; def $0", "=v"()
%v73 = call i32 asm sideeffect "; def $0", "=v"()
%v74 = call i32 asm sideeffect "; def $0", "=v"()
%v75 = call i32 asm sideeffect "; def $0", "=v"()
%v76 = call i32 asm sideeffect "; def $0", "=v"()
%v77 = call i32 asm sideeffect "; def $0", "=v"()
%v78 = call i32 asm sideeffect "; def $0", "=v"()
%v79 = call i32 asm sideeffect "; def $0", "=v"()
%v80 = call i32 asm sideeffect "; def $0", "=v"()
%v81 = call i32 asm sideeffect "; def $0", "=v"()
%v82 = call i32 asm sideeffect "; def $0", "=v"()
%v83 = call i32 asm sideeffect "; def $0", "=v"()
%v84 = call i32 asm sideeffect "; def $0", "=v"()
%v85 = call i32 asm sideeffect "; def $0", "=v"()
%v86 = call i32 asm sideeffect "; def $0", "=v"()
%v87 = call i32 asm sideeffect "; def $0", "=v"()
%v88 = call i32 asm sideeffect "; def $0", "=v"()
%v89 = call i32 asm sideeffect "; def $0", "=v"()
%v90 = call i32 asm sideeffect "; def $0", "=v"()
%v91 = call i32 asm sideeffect "; def $0", "=v"()
%v92 = call i32 asm sideeffect "; def $0", "=v"()
%v93 = call i32 asm sideeffect "; def $0", "=v"()
%v94 = call i32 asm sideeffect "; def $0", "=v"()
%v95 = call i32 asm sideeffect "; def $0", "=v"()
%v96 = call i32 asm sideeffect "; def $0", "=v"()
%v97 = call i32 asm sideeffect "; def $0", "=v"()
%v98 = call i32 asm sideeffect "; def $0", "=v"()
%v99 = call i32 asm sideeffect "; def $0", "=v"()
%v100 = call i32 asm sideeffect "; def $0", "=v"()
%v101 = call i32 asm sideeffect "; def $0", "=v"()
%v102 = call i32 asm sideeffect "; def $0", "=v"()
%v103 = call i32 asm sideeffect "; def $0", "=v"()
%v104 = call i32 asm sideeffect "; def $0", "=v"()
%v105 = call i32 asm sideeffect "; def $0", "=v"()
%v106 = call i32 asm sideeffect "; def $0", "=v"()
%v107 = call i32 asm sideeffect "; def $0", "=v"()
%v108 = call i32 asm sideeffect "; def $0", "=v"()
%v109 = call i32 asm sideeffect "; def $0", "=v"()
%v110 = call i32 asm sideeffect "; def $0", "=v"()
%v111 = call i32 asm sideeffect "; def $0", "=v"()
%v112 = call i32 asm sideeffect "; def $0", "=v"()
%v113 = call i32 asm sideeffect "; def $0", "=v"()
%v114 = call i32 asm sideeffect "; def $0", "=v"()
%v115 = call i32 asm sideeffect "; def $0", "=v"()
%v116 = call i32 asm sideeffect "; def $0", "=v"()
%v117 = call i32 asm sideeffect "; def $0", "=v"()
%v118 = call i32 asm sideeffect "; def $0", "=v"()
%v119 = call i32 asm sideeffect "; def $0", "=v"()
%v120 = call i32 asm sideeffect "; def $0", "=v"()
%v121 = call i32 asm sideeffect "; def $0", "=v"()
%v122 = call i32 asm sideeffect "; def $0", "=v"()
%v123 = call i32 asm sideeffect "; def $0", "=v"()
%v124 = call i32 asm sideeffect "; def $0", "=v"()
%v125 = call i32 asm sideeffect "; def $0", "=v"()
%v126 = call i32 asm sideeffect "; def $0", "=v"()
%v127 = call i32 asm sideeffect "; def $0", "=v"()
%v128 = call i32 asm sideeffect "; def $0", "=v"()
%v129 = call i32 asm sideeffect "; def $0", "=v"()
%v130 = call i32 asm sideeffect "; def $0", "=v"()
%v131 = call i32 asm sideeffect "; def $0", "=v"()
%v132 = call i32 asm sideeffect "; def $0", "=v"()
%v133 = call i32 asm sideeffect "; def $0", "=v"()
%v134 = call i32 asm sideeffect "; def $0", "=v"()
%v135 = call i32 asm sideeffect "; def $0", "=v"()
%v136 = call i32 asm sideeffect "; def $0", "=v"()
%v137 = call i32 asm sideeffect "; def $0", "=v"()
%v138 = call i32 asm sideeffect "; def $0", "=v"()
%v139 = call i32 asm sideeffect "; def $0", "=v"()
%v140 = call i32 asm sideeffect "; def $0", "=v"()
%v141 = call i32 asm sideeffect "; def $0", "=v"()
%v142 = call i32 asm sideeffect "; def $0", "=v"()
%v143 = call i32 asm sideeffect "; def $0", "=v"()
%v144 = call i32 asm sideeffect "; def $0", "=v"()
%v145 = call i32 asm sideeffect "; def $0", "=v"()
%v146 = call i32 asm sideeffect "; def $0", "=v"()
%v147 = call i32 asm sideeffect "; def $0", "=v"()
%v148 = call i32 asm sideeffect "; def $0", "=v"()
%v149 = call i32 asm sideeffect "; def $0", "=v"()
%v150 = call i32 asm sideeffect "; def $0", "=v"()
%v151 = call i32 asm sideeffect "; def $0", "=v"()
%v152 = call i32 asm sideeffect "; def $0", "=v"()
%v153 = call i32 asm sideeffect "; def $0", "=v"()
%v154 = call i32 asm sideeffect "; def $0", "=v"()
%v155 = call i32 asm sideeffect "; def $0", "=v"()
%v156 = call i32 asm sideeffect "; def $0", "=v"()
%v157 = call i32 asm sideeffect "; def $0", "=v"()
%v158 = call i32 asm sideeffect "; def $0", "=v"()
%v159 = call i32 asm sideeffect "; def $0", "=v"()
%v160 = call i32 asm sideeffect "; def $0", "=v"()
%v161 = call i32 asm sideeffect "; def $0", "=v"()
%v162 = call i32 asm sideeffect "; def $0", "=v"()
%v163 = call i32 asm sideeffect "; def $0", "=v"()
%v164 = call i32 asm sideeffect "; def $0", "=v"()
%v165 = call i32 asm sideeffect "; def $0", "=v"()
%v166 = call i32 asm sideeffect "; def $0", "=v"()
%v167 = call i32 asm sideeffect "; def $0", "=v"()
%v168 = call i32 asm sideeffect "; def $0", "=v"()
%v169 = call i32 asm sideeffect "; def $0", "=v"()
%v170 = call i32 asm sideeffect "; def $0", "=v"()
%v171 = call i32 asm sideeffect "; def $0", "=v"()
%v172 = call i32 asm sideeffect "; def $0", "=v"()
%v173 = call i32 asm sideeffect "; def $0", "=v"()
%v174 = call i32 asm sideeffect "; def $0", "=v"()
%v175 = call i32 asm sideeffect "; def $0", "=v"()
%v176 = call i32 asm sideeffect "; def $0", "=v"()
%v177 = call i32 asm sideeffect "; def $0", "=v"()
%v178 = call i32 asm sideeffect "; def $0", "=v"()
%v179 = call i32 asm sideeffect "; def $0", "=v"()
%v180 = call i32 asm sideeffect "; def $0", "=v"()
%v181 = call i32 asm sideeffect "; def $0", "=v"()
%v182 = call i32 asm sideeffect "; def $0", "=v"()
%v183 = call i32 asm sideeffect "; def $0", "=v"()
%v184 = call i32 asm sideeffect "; def $0", "=v"()
%v185 = call i32 asm sideeffect "; def $0", "=v"()
%v186 = call i32 asm sideeffect "; def $0", "=v"()
%v187 = call i32 asm sideeffect "; def $0", "=v"()
%v188 = call i32 asm sideeffect "; def $0", "=v"()
%v189 = call i32 asm sideeffect "; def $0", "=v"()
%v190 = call i32 asm sideeffect "; def $0", "=v"()
%v191 = call i32 asm sideeffect "; def $0", "=v"()
%v192 = call i32 asm sideeffect "; def $0", "=v"()
%v193 = call i32 asm sideeffect "; def $0", "=v"()
%v194 = call i32 asm sideeffect "; def $0", "=v"()
%v195 = call i32 asm sideeffect "; def $0", "=v"()
%v196 = call i32 asm sideeffect "; def $0", "=v"()
%v197 = call i32 asm sideeffect "; def $0", "=v"()
%v198 = call i32 asm sideeffect "; def $0", "=v"()
%v199 = call i32 asm sideeffect "; def $0", "=v"()
%v200 = call i32 asm sideeffect "; def $0", "=v"()
%v201 = call i32 asm sideeffect "; def $0", "=v"()
%v202 = call i32 asm sideeffect "; def $0", "=v"()
%v203 = call i32 asm sideeffect "; def $0", "=v"()
%v204 = call i32 asm sideeffect "; def $0", "=v"()
%v205 = call i32 asm sideeffect "; def $0", "=v"()
%v206 = call i32 asm sideeffect "; def $0", "=v"()
%v207 = call i32 asm sideeffect "; def $0", "=v"()
%v208 = call i32 asm sideeffect "; def $0", "=v"()
%v209 = call i32 asm sideeffect "; def $0", "=v"()
%v210 = call i32 asm sideeffect "; def $0", "=v"()
%v211 = call i32 asm sideeffect "; def $0", "=v"()
%v212 = call i32 asm sideeffect "; def $0", "=v"()
%v213 = call i32 asm sideeffect "; def $0", "=v"()
%v214 = call i32 asm sideeffect "; def $0", "=v"()
%v215 = call i32 asm sideeffect "; def $0", "=v"()
%v216 = call i32 asm sideeffect "; def $0", "=v"()
%v217 = call i32 asm sideeffect "; def $0", "=v"()
%v218 = call i32 asm sideeffect "; def $0", "=v"()
%v219 = call i32 asm sideeffect "; def $0", "=v"()
%v220 = call i32 asm sideeffect "; def $0", "=v"()
%v221 = call i32 asm sideeffect "; def $0", "=v"()
%v222 = call i32 asm sideeffect "; def $0", "=v"()
%v223 = call i32 asm sideeffect "; def $0", "=v"()
%v224 = call i32 asm sideeffect "; def $0", "=v"()
%v225 = call i32 asm sideeffect "; def $0", "=v"()
%v226 = call i32 asm sideeffect "; def $0", "=v"()
%v227 = call i32 asm sideeffect "; def $0", "=v"()
%v228 = call i32 asm sideeffect "; def $0", "=v"()
%v229 = call i32 asm sideeffect "; def $0", "=v"()
%v230 = call i32 asm sideeffect "; def $0", "=v"()
%v231 = call i32 asm sideeffect "; def $0", "=v"()
%v232 = call i32 asm sideeffect "; def $0", "=v"()
%v233 = call i32 asm sideeffect "; def $0", "=v"()
%v234 = call i32 asm sideeffect "; def $0", "=v"()
%v235 = call i32 asm sideeffect "; def $0", "=v"()
%v236 = call i32 asm sideeffect "; def $0", "=v"()
%v237 = call i32 asm sideeffect "; def $0", "=v"()
%v238 = call i32 asm sideeffect "; def $0", "=v"()
%v239 = call i32 asm sideeffect "; def $0", "=v"()
%v240 = call i32 asm sideeffect "; def $0", "=v"()
%v241 = call i32 asm sideeffect "; def $0", "=v"()
%v242 = call i32 asm sideeffect "; def $0", "=v"()
%v243 = call i32 asm sideeffect "; def $0", "=v"()
%v244 = call i32 asm sideeffect "; def $0", "=v"()
%v245 = call i32 asm sideeffect "; def $0", "=v"()
%v246 = call i32 asm sideeffect "; def $0", "=v"()
%v247 = call i32 asm sideeffect "; def $0", "=v"()
%v248 = call i32 asm sideeffect "; def $0", "=v"()
%v249 = call i32 asm sideeffect "; def $0", "=v"()
%v250 = call i32 asm sideeffect "; def $0", "=v"()
%v251 = call i32 asm sideeffect "; def $0", "=v"()
%v252 = call i32 asm sideeffect "; def $0", "=v"()
%v253 = call i32 asm sideeffect "; def $0", "=v"()
%v254 = call i32 asm sideeffect "; def $0", "=v"()
%v255 = call i32 asm sideeffect "; def $0", "=v"()
call void asm sideeffect "; use $0", "v"(i32 %v0)
call void asm sideeffect "; use $0", "v"(i32 %v1)
call void asm sideeffect "; use $0", "v"(i32 %v2)
call void asm sideeffect "; use $0", "v"(i32 %v3)
call void asm sideeffect "; use $0", "v"(i32 %v4)
call void asm sideeffect "; use $0", "v"(i32 %v5)
call void asm sideeffect "; use $0", "v"(i32 %v6)
call void asm sideeffect "; use $0", "v"(i32 %v7)
call void asm sideeffect "; use $0", "v"(i32 %v8)
call void asm sideeffect "; use $0", "v"(i32 %v9)
call void asm sideeffect "; use $0", "v"(i32 %v10)
call void asm sideeffect "; use $0", "v"(i32 %v11)
call void asm sideeffect "; use $0", "v"(i32 %v12)
call void asm sideeffect "; use $0", "v"(i32 %v13)
call void asm sideeffect "; use $0", "v"(i32 %v14)
call void asm sideeffect "; use $0", "v"(i32 %v15)
call void asm sideeffect "; use $0", "v"(i32 %v16)
call void asm sideeffect "; use $0", "v"(i32 %v17)
call void asm sideeffect "; use $0", "v"(i32 %v18)
call void asm sideeffect "; use $0", "v"(i32 %v19)
call void asm sideeffect "; use $0", "v"(i32 %v20)
call void asm sideeffect "; use $0", "v"(i32 %v21)
call void asm sideeffect "; use $0", "v"(i32 %v22)
call void asm sideeffect "; use $0", "v"(i32 %v23)
call void asm sideeffect "; use $0", "v"(i32 %v24)
call void asm sideeffect "; use $0", "v"(i32 %v25)
call void asm sideeffect "; use $0", "v"(i32 %v26)
call void asm sideeffect "; use $0", "v"(i32 %v27)
call void asm sideeffect "; use $0", "v"(i32 %v28)
call void asm sideeffect "; use $0", "v"(i32 %v29)
call void asm sideeffect "; use $0", "v"(i32 %v30)
call void asm sideeffect "; use $0", "v"(i32 %v31)
call void asm sideeffect "; use $0", "v"(i32 %v32)
call void asm sideeffect "; use $0", "v"(i32 %v33)
call void asm sideeffect "; use $0", "v"(i32 %v34)
call void asm sideeffect "; use $0", "v"(i32 %v35)
call void asm sideeffect "; use $0", "v"(i32 %v36)
call void asm sideeffect "; use $0", "v"(i32 %v37)
call void asm sideeffect "; use $0", "v"(i32 %v38)
call void asm sideeffect "; use $0", "v"(i32 %v39)
call void asm sideeffect "; use $0", "v"(i32 %v40)
call void asm sideeffect "; use $0", "v"(i32 %v41)
call void asm sideeffect "; use $0", "v"(i32 %v42)
call void asm sideeffect "; use $0", "v"(i32 %v43)
call void asm sideeffect "; use $0", "v"(i32 %v44)
call void asm sideeffect "; use $0", "v"(i32 %v45)
call void asm sideeffect "; use $0", "v"(i32 %v46)
call void asm sideeffect "; use $0", "v"(i32 %v47)
call void asm sideeffect "; use $0", "v"(i32 %v48)
call void asm sideeffect "; use $0", "v"(i32 %v49)
call void asm sideeffect "; use $0", "v"(i32 %v50)
call void asm sideeffect "; use $0", "v"(i32 %v51)
call void asm sideeffect "; use $0", "v"(i32 %v52)
call void asm sideeffect "; use $0", "v"(i32 %v53)
call void asm sideeffect "; use $0", "v"(i32 %v54)
call void asm sideeffect "; use $0", "v"(i32 %v55)
call void asm sideeffect "; use $0", "v"(i32 %v56)
call void asm sideeffect "; use $0", "v"(i32 %v57)
call void asm sideeffect "; use $0", "v"(i32 %v58)
call void asm sideeffect "; use $0", "v"(i32 %v59)
call void asm sideeffect "; use $0", "v"(i32 %v60)
call void asm sideeffect "; use $0", "v"(i32 %v61)
call void asm sideeffect "; use $0", "v"(i32 %v62)
call void asm sideeffect "; use $0", "v"(i32 %v63)
call void asm sideeffect "; use $0", "v"(i32 %v64)
call void asm sideeffect "; use $0", "v"(i32 %v65)
call void asm sideeffect "; use $0", "v"(i32 %v66)
call void asm sideeffect "; use $0", "v"(i32 %v67)
call void asm sideeffect "; use $0", "v"(i32 %v68)
call void asm sideeffect "; use $0", "v"(i32 %v69)
call void asm sideeffect "; use $0", "v"(i32 %v70)
call void asm sideeffect "; use $0", "v"(i32 %v71)
call void asm sideeffect "; use $0", "v"(i32 %v72)
call void asm sideeffect "; use $0", "v"(i32 %v73)
call void asm sideeffect "; use $0", "v"(i32 %v74)
call void asm sideeffect "; use $0", "v"(i32 %v75)
call void asm sideeffect "; use $0", "v"(i32 %v76)
call void asm sideeffect "; use $0", "v"(i32 %v77)
call void asm sideeffect "; use $0", "v"(i32 %v78)
call void asm sideeffect "; use $0", "v"(i32 %v79)
call void asm sideeffect "; use $0", "v"(i32 %v80)
call void asm sideeffect "; use $0", "v"(i32 %v81)
call void asm sideeffect "; use $0", "v"(i32 %v82)
call void asm sideeffect "; use $0", "v"(i32 %v83)
call void asm sideeffect "; use $0", "v"(i32 %v84)
call void asm sideeffect "; use $0", "v"(i32 %v85)
call void asm sideeffect "; use $0", "v"(i32 %v86)
call void asm sideeffect "; use $0", "v"(i32 %v87)
call void asm sideeffect "; use $0", "v"(i32 %v88)
call void asm sideeffect "; use $0", "v"(i32 %v89)
call void asm sideeffect "; use $0", "v"(i32 %v90)
call void asm sideeffect "; use $0", "v"(i32 %v91)
call void asm sideeffect "; use $0", "v"(i32 %v92)
call void asm sideeffect "; use $0", "v"(i32 %v93)
call void asm sideeffect "; use $0", "v"(i32 %v94)
call void asm sideeffect "; use $0", "v"(i32 %v95)
call void asm sideeffect "; use $0", "v"(i32 %v96)
call void asm sideeffect "; use $0", "v"(i32 %v97)
call void asm sideeffect "; use $0", "v"(i32 %v98)
call void asm sideeffect "; use $0", "v"(i32 %v99)
call void asm sideeffect "; use $0", "v"(i32 %v100)
call void asm sideeffect "; use $0", "v"(i32 %v101)
call void asm sideeffect "; use $0", "v"(i32 %v102)
call void asm sideeffect "; use $0", "v"(i32 %v103)
call void asm sideeffect "; use $0", "v"(i32 %v104)
call void asm sideeffect "; use $0", "v"(i32 %v105)
call void asm sideeffect "; use $0", "v"(i32 %v106)
call void asm sideeffect "; use $0", "v"(i32 %v107)
call void asm sideeffect "; use $0", "v"(i32 %v108)
call void asm sideeffect "; use $0", "v"(i32 %v109)
call void asm sideeffect "; use $0", "v"(i32 %v110)
call void asm sideeffect "; use $0", "v"(i32 %v111)
call void asm sideeffect "; use $0", "v"(i32 %v112)
call void asm sideeffect "; use $0", "v"(i32 %v113)
call void asm sideeffect "; use $0", "v"(i32 %v114)
call void asm sideeffect "; use $0", "v"(i32 %v115)
call void asm sideeffect "; use $0", "v"(i32 %v116)
call void asm sideeffect "; use $0", "v"(i32 %v117)
call void asm sideeffect "; use $0", "v"(i32 %v118)
call void asm sideeffect "; use $0", "v"(i32 %v119)
call void asm sideeffect "; use $0", "v"(i32 %v120)
call void asm sideeffect "; use $0", "v"(i32 %v121)
call void asm sideeffect "; use $0", "v"(i32 %v122)
call void asm sideeffect "; use $0", "v"(i32 %v123)
call void asm sideeffect "; use $0", "v"(i32 %v124)
call void asm sideeffect "; use $0", "v"(i32 %v125)
call void asm sideeffect "; use $0", "v"(i32 %v126)
call void asm sideeffect "; use $0", "v"(i32 %v127)
call void asm sideeffect "; use $0", "v"(i32 %v128)
call void asm sideeffect "; use $0", "v"(i32 %v129)
call void asm sideeffect "; use $0", "v"(i32 %v130)
call void asm sideeffect "; use $0", "v"(i32 %v131)
call void asm sideeffect "; use $0", "v"(i32 %v132)
call void asm sideeffect "; use $0", "v"(i32 %v133)
call void asm sideeffect "; use $0", "v"(i32 %v134)
call void asm sideeffect "; use $0", "v"(i32 %v135)
call void asm sideeffect "; use $0", "v"(i32 %v136)
call void asm sideeffect "; use $0", "v"(i32 %v137)
call void asm sideeffect "; use $0", "v"(i32 %v138)
call void asm sideeffect "; use $0", "v"(i32 %v139)
call void asm sideeffect "; use $0", "v"(i32 %v140)
call void asm sideeffect "; use $0", "v"(i32 %v141)
call void asm sideeffect "; use $0", "v"(i32 %v142)
call void asm sideeffect "; use $0", "v"(i32 %v143)
call void asm sideeffect "; use $0", "v"(i32 %v144)
call void asm sideeffect "; use $0", "v"(i32 %v145)
call void asm sideeffect "; use $0", "v"(i32 %v146)
call void asm sideeffect "; use $0", "v"(i32 %v147)
call void asm sideeffect "; use $0", "v"(i32 %v148)
call void asm sideeffect "; use $0", "v"(i32 %v149)
call void asm sideeffect "; use $0", "v"(i32 %v150)
call void asm sideeffect "; use $0", "v"(i32 %v151)
call void asm sideeffect "; use $0", "v"(i32 %v152)
call void asm sideeffect "; use $0", "v"(i32 %v153)
call void asm sideeffect "; use $0", "v"(i32 %v154)
call void asm sideeffect "; use $0", "v"(i32 %v155)
call void asm sideeffect "; use $0", "v"(i32 %v156)
call void asm sideeffect "; use $0", "v"(i32 %v157)
call void asm sideeffect "; use $0", "v"(i32 %v158)
call void asm sideeffect "; use $0", "v"(i32 %v159)
call void asm sideeffect "; use $0", "v"(i32 %v160)
call void asm sideeffect "; use $0", "v"(i32 %v161)
call void asm sideeffect "; use $0", "v"(i32 %v162)
call void asm sideeffect "; use $0", "v"(i32 %v163)
call void asm sideeffect "; use $0", "v"(i32 %v164)
call void asm sideeffect "; use $0", "v"(i32 %v165)
call void asm sideeffect "; use $0", "v"(i32 %v166)
call void asm sideeffect "; use $0", "v"(i32 %v167)
call void asm sideeffect "; use $0", "v"(i32 %v168)
call void asm sideeffect "; use $0", "v"(i32 %v169)
call void asm sideeffect "; use $0", "v"(i32 %v170)
call void asm sideeffect "; use $0", "v"(i32 %v171)
call void asm sideeffect "; use $0", "v"(i32 %v172)
call void asm sideeffect "; use $0", "v"(i32 %v173)
call void asm sideeffect "; use $0", "v"(i32 %v174)
call void asm sideeffect "; use $0", "v"(i32 %v175)
call void asm sideeffect "; use $0", "v"(i32 %v176)
call void asm sideeffect "; use $0", "v"(i32 %v177)
call void asm sideeffect "; use $0", "v"(i32 %v178)
call void asm sideeffect "; use $0", "v"(i32 %v179)
call void asm sideeffect "; use $0", "v"(i32 %v180)
call void asm sideeffect "; use $0", "v"(i32 %v181)
call void asm sideeffect "; use $0", "v"(i32 %v182)
call void asm sideeffect "; use $0", "v"(i32 %v183)
call void asm sideeffect "; use $0", "v"(i32 %v184)
call void asm sideeffect "; use $0", "v"(i32 %v185)
call void asm sideeffect "; use $0", "v"(i32 %v186)
call void asm sideeffect "; use $0", "v"(i32 %v187)
call void asm sideeffect "; use $0", "v"(i32 %v188)
call void asm sideeffect "; use $0", "v"(i32 %v189)
call void asm sideeffect "; use $0", "v"(i32 %v190)
call void asm sideeffect "; use $0", "v"(i32 %v191)
call void asm sideeffect "; use $0", "v"(i32 %v192)
call void asm sideeffect "; use $0", "v"(i32 %v193)
call void asm sideeffect "; use $0", "v"(i32 %v194)
call void asm sideeffect "; use $0", "v"(i32 %v195)
call void asm sideeffect "; use $0", "v"(i32 %v196)
call void asm sideeffect "; use $0", "v"(i32 %v197)
call void asm sideeffect "; use $0", "v"(i32 %v198)
call void asm sideeffect "; use $0", "v"(i32 %v199)
call void asm sideeffect "; use $0", "v"(i32 %v200)
call void asm sideeffect "; use $0", "v"(i32 %v201)
call void asm sideeffect "; use $0", "v"(i32 %v202)
call void asm sideeffect "; use $0", "v"(i32 %v203)
call void asm sideeffect "; use $0", "v"(i32 %v204)
call void asm sideeffect "; use $0", "v"(i32 %v205)
call void asm sideeffect "; use $0", "v"(i32 %v206)
call void asm sideeffect "; use $0", "v"(i32 %v207)
call void asm sideeffect "; use $0", "v"(i32 %v208)
call void asm sideeffect "; use $0", "v"(i32 %v209)
call void asm sideeffect "; use $0", "v"(i32 %v210)
call void asm sideeffect "; use $0", "v"(i32 %v211)
call void asm sideeffect "; use $0", "v"(i32 %v212)
call void asm sideeffect "; use $0", "v"(i32 %v213)
call void asm sideeffect "; use $0", "v"(i32 %v214)
call void asm sideeffect "; use $0", "v"(i32 %v215)
call void asm sideeffect "; use $0", "v"(i32 %v216)
call void asm sideeffect "; use $0", "v"(i32 %v217)
call void asm sideeffect "; use $0", "v"(i32 %v218)
call void asm sideeffect "; use $0", "v"(i32 %v219)
call void asm sideeffect "; use $0", "v"(i32 %v220)
call void asm sideeffect "; use $0", "v"(i32 %v221)
call void asm sideeffect "; use $0", "v"(i32 %v222)
call void asm sideeffect "; use $0", "v"(i32 %v223)
call void asm sideeffect "; use $0", "v"(i32 %v224)
call void asm sideeffect "; use $0", "v"(i32 %v225)
call void asm sideeffect "; use $0", "v"(i32 %v226)
call void asm sideeffect "; use $0", "v"(i32 %v227)
call void asm sideeffect "; use $0", "v"(i32 %v228)
call void asm sideeffect "; use $0", "v"(i32 %v229)
call void asm sideeffect "; use $0", "v"(i32 %v230)
call void asm sideeffect "; use $0", "v"(i32 %v231)
call void asm sideeffect "; use $0", "v"(i32 %v232)
call void asm sideeffect "; use $0", "v"(i32 %v233)
call void asm sideeffect "; use $0", "v"(i32 %v234)
call void asm sideeffect "; use $0", "v"(i32 %v235)
call void asm sideeffect "; use $0", "v"(i32 %v236)
call void asm sideeffect "; use $0", "v"(i32 %v237)
call void asm sideeffect "; use $0", "v"(i32 %v238)
call void asm sideeffect "; use $0", "v"(i32 %v239)
call void asm sideeffect "; use $0", "v"(i32 %v240)
call void asm sideeffect "; use $0", "v"(i32 %v241)
call void asm sideeffect "; use $0", "v"(i32 %v242)
call void asm sideeffect "; use $0", "v"(i32 %v243)
call void asm sideeffect "; use $0", "v"(i32 %v244)
call void asm sideeffect "; use $0", "v"(i32 %v245)
call void asm sideeffect "; use $0", "v"(i32 %v246)
call void asm sideeffect "; use $0", "v"(i32 %v247)
call void asm sideeffect "; use $0", "v"(i32 %v248)
call void asm sideeffect "; use $0", "v"(i32 %v249)
call void asm sideeffect "; use $0", "v"(i32 %v250)
call void asm sideeffect "; use $0", "v"(i32 %v251)
call void asm sideeffect "; use $0", "v"(i32 %v252)
call void asm sideeffect "; use $0", "v"(i32 %v253)
call void asm sideeffect "; use $0", "v"(i32 %v254)
call void asm sideeffect "; use $0", "v"(i32 %v255)
ret void
}
; GCN-LABEL: {{^}}f256:
; GFX9: NumVgprs: 256
; GFX10WGP-WAVE32: NumVgprs: 256
; GFX10WGP-WAVE64: NumVgprs: 256
; GFX10CU-WAVE32: NumVgprs: 256
; GFX10CU-WAVE64: NumVgprs: 256
define amdgpu_kernel void @f256() #256 {
call void @use256vgprs()
ret void
}
attributes #256 = { nounwind "amdgpu-flat-work-group-size"="256,256" }
; GCN-LABEL: {{^}}f512:
; GFX9: NumVgprs: 128
; GFX10WGP-WAVE32: NumVgprs: 256
; GFX10WGP-WAVE64: NumVgprs: 256
; GFX10CU-WAVE32: NumVgprs: 128
; GFX10CU-WAVE64: NumVgprs: 128
define amdgpu_kernel void @f512() #512 {
call void @use256vgprs()
ret void
}
attributes #512 = { nounwind "amdgpu-flat-work-group-size"="512,512" }
; GCN-LABEL: {{^}}f1024:
; GFX9: NumVgprs: 64
; GFX10WGP-WAVE32: NumVgprs: 128
; GFX10WGP-WAVE64: NumVgprs: 128
; GFX10CU-WAVE32: NumVgprs: 64
; GFX10CU-WAVE64: NumVgprs: 64
define amdgpu_kernel void @f1024() #1024 {
call void @use256vgprs()
ret void
}
attributes #1024 = { nounwind "amdgpu-flat-work-group-size"="1024,1024" }