[PATCH] Teach LLVM about the PPC64 memory sanitizer implementation.

[Jay Foad]

Hi kcc, samsonov, eugenis, willschm,

This is the LLVM part of the PPC memory sanitizer implementation in
D10648.

http://reviews.llvm.org/D10649

Files:
  lib/Transforms/Instrumentation/MemorySanitizer.cpp

Index: lib/Transforms/Instrumentation/MemorySanitizer.cpp
===================================================================
--- lib/Transforms/Instrumentation/MemorySanitizer.cpp
+++ lib/Transforms/Instrumentation/MemorySanitizer.cpp
@@ -236,6 +236,14 @@
   0x002000000000,  // OriginBase
 };
 
+// ppc64 Linux
+static const MemoryMapParams Linux_PowerPC64_MemoryMapParams = {
+  0x200000000000,  // AndMask
+  0x100000000000,  // XorMask
+  0x080000000000,  // ShadowBase
+  0x1C0000000000,  // OriginBase
+};
+
 // i386 FreeBSD
 static const MemoryMapParams FreeBSD_I386_MemoryMapParams = {
   0x000180000000,  // AndMask
@@ -262,6 +270,11 @@
   &Linux_MIPS64_MemoryMapParams,
 };
 
+static const PlatformMemoryMapParams Linux_PowerPC_MemoryMapParams = {
+  NULL,
+  &Linux_PowerPC64_MemoryMapParams,
+};
+
 static const PlatformMemoryMapParams FreeBSD_X86_MemoryMapParams = {
   &FreeBSD_I386_MemoryMapParams,
   &FreeBSD_X86_64_MemoryMapParams,
@@ -479,6 +492,10 @@
         case Triple::mips64el:
           MapParams = Linux_MIPS_MemoryMapParams.bits64;
           break;
+        case Triple::ppc64:
+        case Triple::ppc64le:
+          MapParams = Linux_PowerPC_MemoryMapParams.bits64;
+          break;
         default:
           report_fatal_error("unsupported architecture");
       }

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