From: Alexander Soldatov <soldatov.a@samsung.com>
Date: Thu, 31 Aug 2017 18:14:07 +0000 (+0300)
Subject: [RyuJIT/ARM32] Correct handling of double registers in registerIsAvailable()
X-Git-Tag: submit/tizen/20210909.063632~11030^2~6513^2~157^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fa4e8b8c05725c7d7151043fd8885b664e9ca67e;p=platform%2Fupstream%2Fdotnet%2Fruntime.git

[RyuJIT/ARM32] Correct handling of double registers in registerIsAvailable()


Commit migrated from https://github.com/dotnet/coreclr/commit/973fd568a6efd238080fe7b23973c1340d675c35
---

diff --git a/src/coreclr/src/jit/lsra.cpp b/src/coreclr/src/jit/lsra.cpp
index 522ec92..9ec680e 100644
--- a/src/coreclr/src/jit/lsra.cpp
+++ b/src/coreclr/src/jit/lsra.cpp
@@ -5219,8 +5219,7 @@ bool LinearScan::registerIsAvailable(RegRecord*    physRegRecord,
     if (regType == TYP_DOUBLE)
     {
         // Recurse, but check the other half this time (TYP_FLOAT)
-        if (!registerIsAvailable(getRegisterRecord(REG_NEXT(physRegRecord->regNum)), currentLoc, nextRefLocationPtr,
-                                 TYP_FLOAT))
+        if (!registerIsAvailable(findAnotherHalfRegRec(physRegRecord), currentLoc, nextRefLocationPtr, TYP_FLOAT))
             return false;
         nextRefLocation = *nextRefLocationPtr;
     }