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Differential D32831

[AMDGPU] In the new waitcnt insertion pass, use getHeader instead of getTopBlock to find the loop header.
ClosedPublic

Authored by kanarayan on May 3 2017, 2:57 PM.

Details

Reviewers
arsenm
t-tye
Commits
rG5e73b04b84b2: [AMDGPU] In the new waitcnt insertion pass, use getHeader instead of…
rL302290: [AMDGPU] In the new waitcnt insertion pass, use getHeader

Diff Detail

Event Timeline

kanarayan created this revision.May 3 2017, 2:57 PM
Herald added subscribers: t-tye, tpr, dstuttard and 5 others. · View Herald TranscriptMay 3 2017, 2:57 PM
arsenm added inline comments.May 3 2017, 3:18 PM
test/CodeGen/AMDGPU/waitcnt-looptest.ll
2

s/DEFAULT/GCN

27–30

Remove these

35

How is this function testing loops when it doesn't have any control flow?

39

Can you run instanter on this test?

85–87

Remove extra string attributes

90–105

Remove metadata

kanarayan updated this revision to Diff 97741.May 3 2017, 4:25 PM

Updated to the correct test with loop.

I have not removed the metadata but cleaned up others. How do you run the instanter?

kanarayan updated this revision to Diff 97910.May 4 2017, 9:33 PM
kanarayan marked 3 inline comments as done.

Run instnamer on the test file.

kanarayan marked 3 inline comments as done.May 5 2017, 11:23 AM
kanarayan added inline comments.
test/CodeGen/AMDGPU/waitcnt-looptest.ll
90–105

Does running instnamer cover this?

kanarayan added reviewers: arsenm, t-tye.May 5 2017, 11:24 AM
kanarayan marked an inline comment as done.
t-tye accepted this revision.May 5 2017, 12:09 PM

LGTM

This revision is now accepted and ready to land.May 5 2017, 12:09 PM
arsenm added inline comments.May 5 2017, 12:12 PM
test/CodeGen/AMDGPU/waitcnt-looptest.ll
90–105

No, the metadata needs to be manually removed

kanarayan updated this revision to Diff 98002.May 5 2017, 12:48 PM

Removed the opencl metadata manually and reran the instnamer.

arsenm added inline comments.May 5 2017, 12:53 PM
test/CodeGen/AMDGPU/waitcnt-looptest.ll
19

Can drop all of this metadata too

123

You can still drop the tbaa metadata

kanarayan updated this revision to Diff 98008.May 5 2017, 1:19 PM

Remove more of the metadata manually.

kanarayan marked 4 inline comments as done.May 5 2017, 1:19 PM
Closed by commit rL302290: [AMDGPU] In the new waitcnt insertion pass, use getHeader (authored by kannann). · Explain WhyMay 5 2017, 2:23 PM
This revision was automatically updated to reflect the committed changes.

Revision Contents

PathSize
lib/
Target/
AMDGPU/
10 lines
test/
CodeGen/
AMDGPU/
146 lines

Diff 98008

lib/Target/AMDGPU/SIInsertWaitcnts.cpp

Show First 20 Lines • Show All 1,081 Lines • ▼ Show 20 Lines if (EmitSwaitcnt != 0) {
if (!OldWaitcnt || (AMDGPU::decodeVmcnt(IV, Imm) != if (!OldWaitcnt || (AMDGPU::decodeVmcnt(IV, Imm) !=
(CntVal[VM_CNT] & AMDGPU::getVmcntBitMask(IV))) || (CntVal[VM_CNT] & AMDGPU::getVmcntBitMask(IV))) ||
(AMDGPU::decodeExpcnt(IV, Imm) != (AMDGPU::decodeExpcnt(IV, Imm) !=
(CntVal[EXP_CNT] & AMDGPU::getExpcntBitMask(IV))) || (CntVal[EXP_CNT] & AMDGPU::getExpcntBitMask(IV))) ||
(AMDGPU::decodeLgkmcnt(IV, Imm) != (AMDGPU::decodeLgkmcnt(IV, Imm) !=
(CntVal[LGKM_CNT] & AMDGPU::getLgkmcntBitMask(IV)))) { (CntVal[LGKM_CNT] & AMDGPU::getLgkmcntBitMask(IV)))) {
MachineLoop *ContainingLoop = MLI->getLoopFor(MI.getParent()); MachineLoop *ContainingLoop = MLI->getLoopFor(MI.getParent());
if (ContainingLoop) { if (ContainingLoop) {
MachineBasicBlock *TBB = ContainingLoop->getTopBlock(); MachineBasicBlock *TBB = ContainingLoop->getHeader();
BlockWaitcntBrackets *ScoreBracket = BlockWaitcntBrackets *ScoreBracket =
BlockWaitcntBracketsMap[TBB].get(); BlockWaitcntBracketsMap[TBB].get();
if (!ScoreBracket) { if (!ScoreBracket) {
assert(BlockVisitedSet.find(TBB) == BlockVisitedSet.end()); assert(BlockVisitedSet.find(TBB) == BlockVisitedSet.end());
BlockWaitcntBracketsMap[TBB] = make_unique<BlockWaitcntBrackets>(); BlockWaitcntBracketsMap[TBB] = make_unique<BlockWaitcntBrackets>();
ScoreBracket = BlockWaitcntBracketsMap[TBB].get(); ScoreBracket = BlockWaitcntBracketsMap[TBB].get();
} }
ScoreBracket->setRevisitLoop(true); ScoreBracket->setRevisitLoop(true);
DEBUG(dbgs() << "set-revisit: block" DEBUG(dbgs() << "set-revisit: block"
<< ContainingLoop->getTopBlock()->getNumber() << '\n';); << ContainingLoop->getHeader()->getNumber() << '\n';);
} }
} }
// Update an existing waitcount, or make a new one. // Update an existing waitcount, or make a new one.
MachineFunction &MF = *MI.getParent()->getParent(); MachineFunction &MF = *MI.getParent()->getParent();
if (OldWaitcnt && OldWaitcnt->getOpcode() != AMDGPU::S_WAITCNT) { if (OldWaitcnt && OldWaitcnt->getOpcode() != AMDGPU::S_WAITCNT) {
SWaitInst = OldWaitcnt; SWaitInst = OldWaitcnt;
} else { } else {
▲ Show 20 Lines • Show All 644 Lines • ▼ Show 20 Lines for (ReversePostOrderTraversal<MachineFunction *>::rpo_iterator
ScoreBrackets->setPostOrder(MBB.getNumber()); ScoreBrackets->setPostOrder(MBB.getNumber());
MachineLoop *ContainingLoop = MLI->getLoopFor(&MBB); MachineLoop *ContainingLoop = MLI->getLoopFor(&MBB);
if (ContainingLoop && LoopWaitcntDataMap[ContainingLoop] == nullptr) if (ContainingLoop && LoopWaitcntDataMap[ContainingLoop] == nullptr)
LoopWaitcntDataMap[ContainingLoop] = make_unique<LoopWaitcntData>(); LoopWaitcntDataMap[ContainingLoop] = make_unique<LoopWaitcntData>();
// If we are walking into the block from before the loop, then guarantee // If we are walking into the block from before the loop, then guarantee
// at least 1 re-walk over the loop to propagate the information, even if // at least 1 re-walk over the loop to propagate the information, even if
// no S_WAITCNT instructions were generated. // no S_WAITCNT instructions were generated.
if (ContainingLoop && ContainingLoop->getTopBlock() == &MBB && J < I && if (ContainingLoop && ContainingLoop->getHeader() == &MBB && J < I &&
(BlockWaitcntProcessedSet.find(&MBB) == (BlockWaitcntProcessedSet.find(&MBB) ==
BlockWaitcntProcessedSet.end())) { BlockWaitcntProcessedSet.end())) {
BlockWaitcntBracketsMap[&MBB]->setRevisitLoop(true); BlockWaitcntBracketsMap[&MBB]->setRevisitLoop(true);
DEBUG(dbgs() << "set-revisit: block" DEBUG(dbgs() << "set-revisit: block"
<< ContainingLoop->getTopBlock()->getNumber() << '\n';); << ContainingLoop->getHeader()->getNumber() << '\n';);
} }
// Walk over the instructions. // Walk over the instructions.
insertWaitcntInBlock(MF, MBB); insertWaitcntInBlock(MF, MBB);
// Flag that waitcnts have been processed at least once. // Flag that waitcnts have been processed at least once.
BlockWaitcntProcessedSet.insert(&MBB); BlockWaitcntProcessedSet.insert(&MBB);
// See if we want to revisit the loop. // See if we want to revisit the loop.
if (ContainingLoop && loopBottom(ContainingLoop) == &MBB) { if (ContainingLoop && loopBottom(ContainingLoop) == &MBB) {
MachineBasicBlock *EntryBB = ContainingLoop->getTopBlock(); MachineBasicBlock *EntryBB = ContainingLoop->getHeader();
BlockWaitcntBrackets *EntrySB = BlockWaitcntBracketsMap[EntryBB].get(); BlockWaitcntBrackets *EntrySB = BlockWaitcntBracketsMap[EntryBB].get();
if (EntrySB && EntrySB->getRevisitLoop()) { if (EntrySB && EntrySB->getRevisitLoop()) {
EntrySB->setRevisitLoop(false); EntrySB->setRevisitLoop(false);
J = I; J = I;
int32_t PostOrder = EntrySB->getPostOrder(); int32_t PostOrder = EntrySB->getPostOrder();
// TODO: Avoid this loop. Find another way to set I. // TODO: Avoid this loop. Find another way to set I.
for (ReversePostOrderTraversal<MachineFunction *>::rpo_iterator for (ReversePostOrderTraversal<MachineFunction *>::rpo_iterator
X = RPOT.begin(), X = RPOT.begin(),
▲ Show 20 Lines • Show All 78 Lines • Show Last 20 Lines

test/CodeGen/AMDGPU/waitcnt-looptest.ll

  • This file was added.
; RUN: llc < %s -mtriple=amdgcn--amdhsa -mcpu=fiji -mattr=-flat-for-global | FileCheck --check-prefix=GCN %s
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Done
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s/DEFAULT/GCN

arsenm: s/DEFAULT/GCN
; Check that the waitcnt insertion algorithm correctly propagates wait counts
; from before a loop to the loop header.
; GCN-LABEL: {{^}}testKernel
; GCN: BB0_1:
; GCN: s_waitcnt vmcnt(0) lgkmcnt(0)
; GCN-NEXT: v_cmp_eq_f32_e64
; GCN: s_waitcnt vmcnt(0) lgkmcnt(0)
; GCN-NEXT: v_cmp_eq_f32_e32
; GCN: s_waitcnt vmcnt(0) lgkmcnt(0)
; GCN-NEXT: v_cmp_eq_f32_e32
@data_generic = addrspace(1) global [100 x float] [float 0.000000e+00, float 0x3FB99999A0000000, float 0x3FC99999A0000000, float 0x3FD3333340000000, float 0x3FD99999A0000000, float 5.000000e-01, float 0x3FE3333340000000, float 0x3FE6666660000000, float 0x3FE99999A0000000, float 0x3FECCCCCC0000000, float 1.000000e+00, float 0x3FF19999A0000000, float 0x3FF3333340000000, float 0x3FF4CCCCC0000000, float 0x3FF6666660000000, float 1.500000e+00, float 0x3FF99999A0000000, float 0x3FFB333340000000, float 0x3FFCCCCCC0000000, float 0x3FFE666660000000, float 2.000000e+00, float 0x4000CCCCC0000000, float 0x40019999A0000000, float 0x4002666660000000, float 0x4003333340000000, float 2.500000e+00, float 0x4004CCCCC0000000, float 0x40059999A0000000, float 0x4006666660000000, float 0x4007333340000000, float 3.000000e+00, float 0x4008CCCCC0000000, float 0x40099999A0000000, float 0x400A666660000000, float 0x400B333340000000, float 3.500000e+00, float 0x400CCCCCC0000000, float 0x400D9999A0000000, float 0x400E666660000000, float 0x400F333340000000, float 4.000000e+00, float 0x4010666660000000, float 0x4010CCCCC0000000, float 0x4011333340000000, float 0x40119999A0000000, float 4.500000e+00, float 0x4012666660000000, float 0x4012CCCCC0000000, float 0x4013333340000000, float 0x40139999A0000000, float 5.000000e+00, float 0x4014666660000000, float 0x4014CCCCC0000000, float 0x4015333340000000, float 0x40159999A0000000, float 5.500000e+00, float 0x4016666660000000, float 0x4016CCCCC0000000, float 0x4017333340000000, float 0x40179999A0000000, float 6.000000e+00, float 0x4018666660000000, float 0x4018CCCCC0000000, float 0x4019333340000000, float 0x40199999A0000000, float 6.500000e+00, float 0x401A666660000000, float 0x401ACCCCC0000000, float 0x401B333340000000, float 0x401B9999A0000000, float 7.000000e+00, float 0x401C666660000000, float 0x401CCCCCC0000000, float 0x401D333340000000, float 0x401D9999A0000000, float 7.500000e+00, float 0x401E666660000000, float 0x401ECCCCC0000000, float 0x401F333340000000, float 0x401F9999A0000000, float 8.000000e+00, float 0x4020333340000000, float 0x4020666660000000, float 0x40209999A0000000, float 0x4020CCCCC0000000, float 8.500000e+00, float 0x4021333340000000, float 0x4021666660000000, float 0x40219999A0000000, float 0x4021CCCCC0000000, float 9.000000e+00, float 0x4022333340000000, float 0x4022666660000000, float 0x40229999A0000000, float 0x4022CCCCC0000000, float 9.500000e+00, float 0x4023333340000000, float 0x4023666660000000, float 0x40239999A0000000, float 0x4023CCCCC0000000], align 4
@data_reference = addrspace(1) global [100 x float] [float 0.000000e+00, float 0x3FB99999A0000000, float 0x3FC99999A0000000, float 0x3FD3333340000000, float 0x3FD99999A0000000, float 5.000000e-01, float 0x3FE3333340000000, float 0x3FE6666660000000, float 0x3FE99999A0000000, float 0x3FECCCCCC0000000, float 1.000000e+00, float 0x3FF19999A0000000, float 0x3FF3333340000000, float 0x3FF4CCCCC0000000, float 0x3FF6666660000000, float 1.500000e+00, float 0x3FF99999A0000000, float 0x3FFB333340000000, float 0x3FFCCCCCC0000000, float 0x3FFE666660000000, float 2.000000e+00, float 0x4000CCCCC0000000, float 0x40019999A0000000, float 0x4002666660000000, float 0x4003333340000000, float 2.500000e+00, float 0x4004CCCCC0000000, float 0x40059999A0000000, float 0x4006666660000000, float 0x4007333340000000, float 3.000000e+00, float 0x4008CCCCC0000000, float 0x40099999A0000000, float 0x400A666660000000, float 0x400B333340000000, float 3.500000e+00, float 0x400CCCCCC0000000, float 0x400D9999A0000000, float 0x400E666660000000, float 0x400F333340000000, float 4.000000e+00, float 0x4010666660000000, float 0x4010CCCCC0000000, float 0x4011333340000000, float 0x40119999A0000000, float 4.500000e+00, float 0x4012666660000000, float 0x4012CCCCC0000000, float 0x4013333340000000, float 0x40139999A0000000, float 5.000000e+00, float 0x4014666660000000, float 0x4014CCCCC0000000, float 0x4015333340000000, float 0x40159999A0000000, float 5.500000e+00, float 0x4016666660000000, float 0x4016CCCCC0000000, float 0x4017333340000000, float 0x40179999A0000000, float 6.000000e+00, float 0x4018666660000000, float 0x4018CCCCC0000000, float 0x4019333340000000, float 0x40199999A0000000, float 6.500000e+00, float 0x401A666660000000, float 0x401ACCCCC0000000, float 0x401B333340000000, float 0x401B9999A0000000, float 7.000000e+00, float 0x401C666660000000, float 0x401CCCCCC0000000, float 0x401D333340000000, float 0x401D9999A0000000, float 7.500000e+00, float 0x401E666660000000, float 0x401ECCCCC0000000, float 0x401F333340000000, float 0x401F9999A0000000, float 8.000000e+00, float 0x4020333340000000, float 0x4020666660000000, float 0x40209999A0000000, float 0x4020CCCCC0000000, float 8.500000e+00, float 0x4021333340000000, float 0x4021666660000000, float 0x40219999A0000000, float 0x4021CCCCC0000000, float 9.000000e+00, float 0x4022333340000000, float 0x4022666660000000, float 0x40229999A0000000, float 0x4022CCCCC0000000, float 9.500000e+00, float 0x4023333340000000, float 0x4023666660000000, float 0x40239999A0000000, float 0x4023CCCCC0000000], align 4
define amdgpu_kernel void @testKernel(i32 addrspace(1)* nocapture %arg) local_unnamed_addr #0 {
bb:
arsenmUnsubmitted
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Can drop all of this metadata too

arsenm: Can drop all of this metadata too
store <2 x float> <float 1.000000e+00, float 1.000000e+00>, <2 x float> addrspace(4)* bitcast (float addrspace(4)* getelementptr ([100 x float], [100 x float] addrspace(4)* addrspacecast ([100 x float] addrspace(1)* @data_generic to [100 x float] addrspace(4)*), i64 0, i64 4) to <2 x float> addrspace(4)*), align 4
store <2 x float> <float 1.000000e+00, float 1.000000e+00>, <2 x float> addrspace(4)* bitcast (float addrspace(4)* getelementptr ([100 x float], [100 x float] addrspace(4)* addrspacecast ([100 x float] addrspace(1)* @data_reference to [100 x float] addrspace(4)*), i64 0, i64 4) to <2 x float> addrspace(4)*), align 4
br label %bb18
bb1: ; preds = %bb18
%tmp = tail call i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr()
%tmp2 = tail call i32 @llvm.amdgcn.workitem.id.x()
%tmp3 = tail call i32 @llvm.amdgcn.workgroup.id.x()
%tmp4 = getelementptr inbounds i8, i8 addrspace(2)* %tmp, i64 4
%tmp5 = bitcast i8 addrspace(2)* %tmp4 to i16 addrspace(2)*
%tmp6 = load i16, i16 addrspace(2)* %tmp5, align 4
arsenmUnsubmitted
Done
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Remove these

arsenm: Remove these
%tmp7 = zext i16 %tmp6 to i32
%tmp8 = mul i32 %tmp3, %tmp7
%tmp9 = add i32 %tmp8, %tmp2
%tmp10 = tail call i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr()
%tmp11 = zext i32 %tmp9 to i64
arsenmUnsubmitted
Done
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How is this function testing loops when it doesn't have any control flow?

arsenm: How is this function testing loops when it doesn't have any control flow?
%tmp12 = bitcast i8 addrspace(2)* %tmp10 to i64 addrspace(2)*
%tmp13 = load i64, i64 addrspace(2)* %tmp12, align 8
%tmp14 = add i64 %tmp13, %tmp11
%tmp15 = zext i1 %tmp99 to i32
arsenmUnsubmitted
Done
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Can you run instanter on this test?

arsenm: Can you run instanter on this test?
%tmp16 = and i64 %tmp14, 4294967295
%tmp17 = getelementptr inbounds i32, i32 addrspace(1)* %arg, i64 %tmp16
store i32 %tmp15, i32 addrspace(1)* %tmp17, align 4
ret void
bb18: ; preds = %bb18, %bb
%tmp19 = phi i64 [ 0, %bb ], [ %tmp102, %bb18 ]
%tmp20 = phi i32 [ 0, %bb ], [ %tmp100, %bb18 ]
%tmp21 = phi i1 [ true, %bb ], [ %tmp99, %bb18 ]
%tmp22 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp19
%tmp23 = load float, float addrspace(1)* %tmp22, align 4
%tmp24 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp19
%tmp25 = load float, float addrspace(1)* %tmp24, align 4
%tmp26 = fcmp oeq float %tmp23, %tmp25
%tmp27 = and i1 %tmp21, %tmp26
%tmp28 = or i32 %tmp20, 1
%tmp29 = sext i32 %tmp28 to i64
%tmp30 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp29
%tmp31 = load float, float addrspace(1)* %tmp30, align 4
%tmp32 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp29
%tmp33 = load float, float addrspace(1)* %tmp32, align 4
%tmp34 = fcmp oeq float %tmp31, %tmp33
%tmp35 = and i1 %tmp27, %tmp34
%tmp36 = add nuw nsw i32 %tmp20, 2
%tmp37 = sext i32 %tmp36 to i64
%tmp38 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp37
%tmp39 = load float, float addrspace(1)* %tmp38, align 4
%tmp40 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp37
%tmp41 = load float, float addrspace(1)* %tmp40, align 4
%tmp42 = fcmp oeq float %tmp39, %tmp41
%tmp43 = and i1 %tmp35, %tmp42
%tmp44 = add nuw nsw i32 %tmp20, 3
%tmp45 = sext i32 %tmp44 to i64
%tmp46 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp45
%tmp47 = load float, float addrspace(1)* %tmp46, align 4
%tmp48 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp45
%tmp49 = load float, float addrspace(1)* %tmp48, align 4
%tmp50 = fcmp oeq float %tmp47, %tmp49
%tmp51 = and i1 %tmp43, %tmp50
%tmp52 = add nuw nsw i32 %tmp20, 4
%tmp53 = sext i32 %tmp52 to i64
%tmp54 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp53
%tmp55 = load float, float addrspace(1)* %tmp54, align 4
%tmp56 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp53
%tmp57 = load float, float addrspace(1)* %tmp56, align 4
%tmp58 = fcmp oeq float %tmp55, %tmp57
%tmp59 = and i1 %tmp51, %tmp58
%tmp60 = add nuw nsw i32 %tmp20, 5
arsenmUnsubmitted
Done
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Remove extra string attributes

arsenm: Remove extra string attributes
%tmp61 = sext i32 %tmp60 to i64
%tmp62 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp61
%tmp63 = load float, float addrspace(1)* %tmp62, align 4
%tmp64 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp61
%tmp65 = load float, float addrspace(1)* %tmp64, align 4
%tmp66 = fcmp oeq float %tmp63, %tmp65
%tmp67 = and i1 %tmp59, %tmp66
%tmp68 = add nuw nsw i32 %tmp20, 6
%tmp69 = sext i32 %tmp68 to i64
%tmp70 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp69
%tmp71 = load float, float addrspace(1)* %tmp70, align 4
%tmp72 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp69
%tmp73 = load float, float addrspace(1)* %tmp72, align 4
%tmp74 = fcmp oeq float %tmp71, %tmp73
%tmp75 = and i1 %tmp67, %tmp74
%tmp76 = add nuw nsw i32 %tmp20, 7
%tmp77 = sext i32 %tmp76 to i64
%tmp78 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp77
arsenmUnsubmitted
Done
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Remove metadata

arsenm: Remove metadata
kanarayanAuthorUnsubmitted
Done
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Does running instnamer cover this?

kanarayan: Does running instnamer cover this?
arsenmUnsubmitted
Done
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No, the metadata needs to be manually removed

arsenm: No, the metadata needs to be manually removed
%tmp79 = load float, float addrspace(1)* %tmp78, align 4
%tmp80 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp77
%tmp81 = load float, float addrspace(1)* %tmp80, align 4
%tmp82 = fcmp oeq float %tmp79, %tmp81
%tmp83 = and i1 %tmp75, %tmp82
%tmp84 = add nuw nsw i32 %tmp20, 8
%tmp85 = sext i32 %tmp84 to i64
%tmp86 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp85
%tmp87 = load float, float addrspace(1)* %tmp86, align 4
%tmp88 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp85
%tmp89 = load float, float addrspace(1)* %tmp88, align 4
%tmp90 = fcmp oeq float %tmp87, %tmp89
%tmp91 = and i1 %tmp83, %tmp90
%tmp92 = add nuw nsw i32 %tmp20, 9
%tmp93 = sext i32 %tmp92 to i64
%tmp94 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_generic, i64 0, i64 %tmp93
%tmp95 = load float, float addrspace(1)* %tmp94, align 4
%tmp96 = getelementptr inbounds [100 x float], [100 x float] addrspace(1)* @data_reference, i64 0, i64 %tmp93
arsenmUnsubmitted
Done
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You can still drop the tbaa metadata

arsenm: You can still drop the tbaa metadata
%tmp97 = load float, float addrspace(1)* %tmp96, align 4
%tmp98 = fcmp oeq float %tmp95, %tmp97
%tmp99 = and i1 %tmp91, %tmp98
%tmp100 = add nuw nsw i32 %tmp20, 10
%tmp101 = icmp eq i32 %tmp100, 100
%tmp102 = sext i32 %tmp100 to i64
br i1 %tmp101, label %bb1, label %bb18
}
; Function Attrs: nounwind readnone speculatable
declare i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr() #1
; Function Attrs: nounwind readnone speculatable
declare i32 @llvm.amdgcn.workitem.id.x() #1
; Function Attrs: nounwind readnone speculatable
declare i32 @llvm.amdgcn.workgroup.id.x() #1
; Function Attrs: nounwind readnone speculatable
declare i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr() #1
attributes #0 = { "target-cpu"="fiji" "target-features"="-flat-for-global" }
attributes #1 = { nounwind readnone speculatable }