[PATCH] D127949: [PowerPC] Don't lower to CALL to CALL_NOP on LV2 (PS3)
ProtoByter via Phabricator via llvm-commits
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Thu Jun 16 03:00:33 PDT 2022
ProtoByter created this revision.
ProtoByter added a reviewer: PowerPC.
ProtoByter added a project: PowerPC.
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This change stops LLVM from lowering `PPCISD::CALL` to `PPCISD::CALL_NOP` on LV2 since it stops it from being able to build LV2 code
I've tested this with RPCS3 using a sample from PSL1GHT and I can confirm that it runs for me
This fixes issue #55456 <https://github.com/llvm/llvm-project/issues/55456>
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D127949
Files:
llvm/lib/Target/PowerPC/PPCISelLowering.cpp
Index: llvm/lib/Target/PowerPC/PPCISelLowering.cpp
===================================================================
--- llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -5248,8 +5248,9 @@
// TOC pointer at an ABI designated offset in the linkage area and the
// linker will rewrite the nop to be a load of the TOC pointer from the
// linkage area into gpr2.
- RetOpc = callsShareTOCBase(&Caller, Callee, TM) ? PPCISD::CALL
- : PPCISD::CALL_NOP;
+ RetOpc = callsShareTOCBase(&Caller, Callee, TM)
+ && Subtarget.getTargetTriple().getOS() != Triple::Lv2 ? PPCISD::CALL
+ : PPCISD::CALL_NOP;
else
RetOpc = PPCISD::CALL;
if (IsStrictFPCall) {
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