Merging r266833:

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r266833 | koriakin | 2016-04-20 00:46:59 +0100 (Wed, 20 Apr 2016) | 5 lines

[Mips] [MSan] VarArgMIPS64Helper: Use target's endian, not host's.

Ugh.

Differential Revision: http://reviews.llvm.org/D19292
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_38@271119 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Instrumentation/MemorySanitizer.cpp b/lib/Transforms/Instrumentation/MemorySanitizer.cpp
index 34aaa7f27d6ef370d488aec876142368419dbe5b..14145bc354ffbd7b1c9505f6eebeda0c9be51926 100644 (file)
--- a/lib/Transforms/Instrumentation/MemorySanitizer.cpp
+++ b/lib/Transforms/Instrumentation/MemorySanitizer.cpp
@@ -2954,15 +2954,16 @@ struct VarArgMIPS64Helper : public VarArgHelper {
     const DataLayout &DL = F.getParent()->getDataLayout();
     for (CallSite::arg_iterator ArgIt = CS.arg_begin() + 1, End = CS.arg_end();
          ArgIt != End; ++ArgIt) {
+      llvm::Triple TargetTriple(F.getParent()->getTargetTriple());
       Value *A = *ArgIt;
       Value *Base;
       uint64_t ArgSize = DL.getTypeAllocSize(A->getType());
-#if defined(__MIPSEB__) || defined(MIPSEB)
-      // Adjusting the shadow for argument with size < 8 to match the placement
-      // of bits in big endian system
-      if (ArgSize < 8)
-        VAArgOffset += (8 - ArgSize);
-#endif
+      if (TargetTriple.getArch() == llvm::Triple::mips64) {
+        // Adjusting the shadow for argument with size < 8 to match the placement
+        // of bits in big endian system
+        if (ArgSize < 8)
+          VAArgOffset += (8 - ArgSize);
+      }
       Base = getShadowPtrForVAArgument(A->getType(), IRB, VAArgOffset);
       VAArgOffset += ArgSize;
       VAArgOffset = RoundUpToAlignment(VAArgOffset, 8);