https://github.com/arsenm created
https://github.com/llvm/llvm-project/pull/130085
None
>From 924dae6487d294c2cccb1862be4585d28a33bbc0 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <matthew.arsena...@amd.com>
Date: Thu, 6 Mar 2025 18:51:01 +0700
Subject: [PATCH] PeepholeOpt: Remove subreg def check for insert_subreg
---
llvm/lib/CodeGen/PeepholeOptimizer.cpp | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/llvm/lib/CodeGen/PeepholeOptimizer.cpp
b/llvm/lib/CodeGen/PeepholeOptimizer.cpp
index 2a328039c3032..4d0fd86eb216f 100644
--- a/llvm/lib/CodeGen/PeepholeOptimizer.cpp
+++ b/llvm/lib/CodeGen/PeepholeOptimizer.cpp
@@ -2028,12 +2028,7 @@ ValueTrackerResult
ValueTracker::getNextSourceFromRegSequence() {
ValueTrackerResult ValueTracker::getNextSourceFromInsertSubreg() {
assert((Def->isInsertSubreg() || Def->isInsertSubregLike()) &&
"Invalid definition");
-
- if (Def->getOperand(DefIdx).getSubReg())
- // If we are composing subreg, bail out.
- // Same remark as getNextSourceFromRegSequence.
- // I.e., this may be turned into an assert.
- return ValueTrackerResult();
+ assert(!Def->getOperand(DefIdx).getSubReg() && "no subreg defs in SSA");
RegSubRegPair BaseReg;
RegSubRegPairAndIdx InsertedReg;
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