[llvm] [X86][NewPM] Add Skeleton for X86 Pass Registry (PR #150573)

via llvm-commits llvm-commits at lists.llvm.org
Thu Jul 24 21:55:03 PDT 2025


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: Aiden Grossman (boomanaiden154)

<details>
<summary>Changes</summary>

This patch adds most of the x86 legacy passes to the pass registry for the NewPM. This is intended to outline the work that needs to be done to get them all ported over.

At least two of the dummy function passes (lower-amx-intrinsics, lower-amx-type) sort of already have NewPM versions, but leaving them as dummy function passes for now because they need some touch up before they actually work.

---
Full diff: https://github.com/llvm/llvm-project/pull/150573.diff


1 Files Affected:

- (modified) llvm/lib/Target/X86/X86PassRegistry.def (+44) 


``````````diff
diff --git a/llvm/lib/Target/X86/X86PassRegistry.def b/llvm/lib/Target/X86/X86PassRegistry.def
index 620526ffc1ab6..7311b7fcc7cb9 100644
--- a/llvm/lib/Target/X86/X86PassRegistry.def
+++ b/llvm/lib/Target/X86/X86PassRegistry.def
@@ -12,8 +12,52 @@
 
 // NOTE: NO INCLUDE GUARD DESIRED!
 
+#ifndef DUMMY_FUNCTION_PASS
+#define DUMMY_FUNCTION_PASS(NAME, CREATE_PASS)
+#endif
+DUMMY_FUNCTION_PASS("lower-amx-intrinsics", X86LowerAMXIntrinsics(*this))
+DUMMY_FUNCTION_PASS("lower-amx-type", X86LowerAMXTypePass(*this))
+DUMMY_FUNCTION_PASS("x86-partial-reduction", X86PartialReduction())
+DUMMY_FUNCTION_PASS("x86-winehstate", WinEHStatePass())
+#undef DUMMY_FUNCTION_PASS
+
 #ifndef MACHINE_FUNCTION_PASS
 #define MACHINE_FUNCTION_PASS(NAME, CREATE_PASS)
 #endif
 MACHINE_FUNCTION_PASS("x86-isel", X86ISelDAGToDAGPass(*this))
 #undef MACHINE_FUNCTION_PASS
+
+#ifndef DUMMY_MACHINE_FUNCTION_PASS
+#define DUMMY_MACHINE_FUNCTION_PASS(NAME, PASS_NAME)
+#endif
+DUMMY_MACHINE_FUNCTION_PASS("x86argumentstackrebase", X86ArgumentStackSlotPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-avoid-SFB", X86AvoidSFBPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-avoid-trailing-call", X86AvoidTrailingCallPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-cf-opt", X86CallFrameOptimization())
+DUMMY_MACHINE_FUNCTION_PASS("x86-cmov-conversion", X86CmovConverterPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-compress-evex", CompressEVEXPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-domain-reassignment", X86DomainReassignment())
+DUMMY_MACHINE_FUNCTION_PASS("x86-dyn-alloca-expander", X86DynAllocaExpander())
+DUMMY_MACHINE_FUNCTION_PASS("x86-pseudo", X86ExpandPseudo())
+DUMMY_MACHINE_FUNCTION_PASS("fastpretileconfig", X86FastPreTileConfig())
+DUMMY_MACHINE_FUNCTION_PASS("fasttileconfig", X86FastTileConfig())
+DUMMY_MACHINE_FUNCTION_PASS("x86-fixup-bw-inst", FixupBWInstPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-fixup-inst-tuning", X86FixupInstTuningPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-fixup-LEAs", FixupLEAPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-fixup-setcc", X86FixupSetCCPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-fixup-vector-constants", X86FixupVectorConstantsPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-flags-copy-lowering", X86FlagsCopyLoweringPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-codege", FPS())
+DUMMY_MACHINE_FUNCTION_PASS("x86-lvi-load", X86LoadValueInjectionLoadHardeningPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-lvi-ret", X86LoadValueInjectionRetHardeningPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-lower-tile-copy", X86LowerTileCopy())
+DUMMY_MACHINE_FUNCTION_PASS("x86-optimize-LEAs", X86OptimizeLEAPass())
+DUMMY_MACHINE_FUNCTION_PASS("tile-pre-config", X86PreTileConfig())
+DUMMY_MACHINE_FUNCTION_PASS("x86-return-thunks", X86ReturnThunks())
+DUMMY_MACHINE_FUNCTION_PASS("x86-seses", X86SpeculativeExecutionSideEffectSuppression())
+DUMMY_MACHINE_FUNCTION_PASS("x86-slh", X86SpeculativeLoadHardeningPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-suppress-apx-for-relocation", X86SuppressAPXForRelocationPass())
+DUMMY_MACHINE_FUNCTION_PASS("x86-execution-domain-fix", X86ExecutionDomainFix())
+DUMMY_MACHINE_FUNCTION_PASS("tileconfig", X86TileConfig())
+DUMMY_MACHINE_FUNCTION_PASS("x86-wineh-unwindv2", X86WinEHUnwindV2())
+#undef DUMMY_MACHINE_FUNCTION_PASS

``````````

</details>


https://github.com/llvm/llvm-project/pull/150573


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