commit 3467b9fd5d0c4ebc726e96c2af96610e2d6915f9
author Ulrich Weigand <ulrich.weigand@de.ibm.com> Tue Oct 30 12:33:18 2012 +0000
committer Ulrich Weigand <ulrich.weigand@de.ibm.com> Tue Oct 30 12:33:18 2012 +0000
tree 3653709ccd95683899af08ceb7a2d2dad5a6f245
parent 04d7d13d301df66f6c232e41611145c062183bf3

Enable some additional constant folding for PPCDoubleDouble.
This fixes Clang :: CodeGen/complex-builtints.c on PowerPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167013 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 055c3b1..fcd805b 100644
--- a/lib/Transforms/InstCombine/InstCombineCompares.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp
@@ -2897,10 +2897,6 @@
         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()->isHalfTy())
@@ -2913,6 +2909,8 @@
           Sem = &APFloat::IEEEquad;
         else if (LHSExt->getSrcTy()->isX86_FP80Ty())
           Sem = &APFloat::x87DoubleExtended;
+        else if (LHSExt->getSrcTy()->isPPC_FP128Ty())
+          Sem = &APFloat::PPCDoubleDouble;
         else
           break;