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| author | Vitaly Buka <vitalybuka@google.com> | 2024-09-10 09:51:43 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-09-10 09:51:43 -0700 |
| commit | c7a7767fca736d0447832ea4d4587fb3b9e797c2 (patch) | |
| tree | 4c8e6b67195311e57694ab8297357cd3c312f623 /llvm/lib/Target/AMDGPU/SIFrameLowering.cpp | |
| parent | 14b43563d1618c71385f3ac15a475adf9d0ef5f9 (diff) | |
Revert "[amdgpu] Add llvm.amdgcn.init.whole.wave intrinsic" (#108054)
Breaks bots, see #105822.
Reverts llvm/llvm-project#105822
Diffstat (limited to 'llvm/lib/Target/AMDGPU/SIFrameLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIFrameLowering.cpp | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp b/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp index dfdc7ad32b00..8c951105101d 100644 --- a/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp +++ b/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp @@ -1343,14 +1343,10 @@ void SIFrameLowering::processFunctionBeforeFrameFinalized( // Allocate spill slots for WWM reserved VGPRs. // For chain functions, we only need to do this if we have calls to - // llvm.amdgcn.cs.chain (otherwise there's no one to save them for, since - // chain functions do not return) and the function did not contain a call to - // llvm.amdgcn.init.whole.wave (since in that case there are no inactive lanes - // when entering the function). - bool IsChainWithoutRestores = - FuncInfo->isChainFunction() && - (!MF.getFrameInfo().hasTailCall() || FuncInfo->hasInitWholeWave()); - if (!FuncInfo->isEntryFunction() && !IsChainWithoutRestores) { + // llvm.amdgcn.cs.chain. + bool IsChainWithoutCalls = + FuncInfo->isChainFunction() && !MF.getFrameInfo().hasTailCall(); + if (!FuncInfo->isEntryFunction() && !IsChainWithoutCalls) { for (Register Reg : FuncInfo->getWWMReservedRegs()) { const TargetRegisterClass *RC = TRI->getPhysRegBaseClass(Reg); FuncInfo->allocateWWMSpill(MF, Reg, TRI->getSpillSize(*RC), |