commit 7ebdc37d2bbfc62ff7957b346bb3a91eb6044d5f
author Benjamin Kramer <benny.kra@googlemail.com> Thu Mar 31 21:35:49 2011 +0000
committer Benjamin Kramer <benny.kra@googlemail.com> Thu Mar 31 21:35:49 2011 +0000
tree 5ca87688eaae944dd8f42780ac69fce5f61441f0
parent 0c630b5f3883aa494eca732f08a547d694d3931a

InstCombine: APFloat can't perform arithmetic on PPC double doubles, don't even try.

Thanks Eli!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128676 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/InstCombine/InstCombineCompares.cpp

diff --git a/lib/Transforms/InstCombine/InstCombineCompares.cpp b/lib/Transforms/InstCombine/InstCombineCompares.cpp
index 3e549d9..8afd2f8 100644
--- a/lib/Transforms/InstCombine/InstCombineCompares.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp
@@ -2769,6 +2769,10 @@
         if (!RHSF)
           break;
 
+        // We can't convert a PPC double double.
+        if (RHSF->getType()->isPPC_FP128Ty())
+          break;
+
         const fltSemantics *Sem;
         // FIXME: This shouldn't be here.
         if (LHSExt->getSrcTy()->isFloatTy())
@@ -2779,8 +2783,6 @@
           Sem = &APFloat::IEEEquad;
         else if (LHSExt->getSrcTy()->isX86_FP80Ty())
           Sem = &APFloat::x87DoubleExtended;
-        else if (LHSExt->getSrcTy()->isPPC_FP128Ty())
-          Sem = &APFloat::PPCDoubleDouble;
         else
           break;