From 4af249fe6e81abd137c95bc25f5060ae305134ca Mon Sep 17 00:00:00 2001
From: anjenner <161845516+anjenner@users.noreply.github.com>
Date: Fri, 6 Sep 2024 16:19:20 +0100
Subject: Add usub_cond and usub_sat operations to atomicrmw (#105568)

These both perform conditional subtraction, returning the minuend and
zero respectively, if the difference is negative.
---
 llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')

diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 1cd9ec6..f887c9b 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1349,6 +1349,10 @@ static AtomicRMWInst::BinOp getDecodedRMWOperation(unsigned Val) {
     return AtomicRMWInst::UIncWrap;
   case bitc::RMW_UDEC_WRAP:
     return AtomicRMWInst::UDecWrap;
+  case bitc::RMW_USUB_COND:
+    return AtomicRMWInst::USubCond;
+  case bitc::RMW_USUB_SAT:
+    return AtomicRMWInst::USubSat;
   }
 }
 
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