commit 53a5fbb45fa45cba48963a6b17defa4c4f072d9d
author Andrew Kaylor <andrew.kaylor@intel.com> Mon Aug 14 21:15:13 2017 +0000
committer Andrew Kaylor <andrew.kaylor@intel.com> Mon Aug 14 21:15:13 2017 +0000
tree 750f3d0408337c88a5ee993680853096b47bbbdf
parent 8bf15723ae9cf59a7171981b1b0257de4d48e344

Add strictfp attribute to prevent unwanted optimizations of libm calls

Differential Revision: https://reviews.llvm.org/D34163

llvm-svn: 310885

llvm/lib/Bitcode/Reader/BitcodeReader.cpp

diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index f8cdbcf..d526760 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1137,6 +1137,7 @@
   case Attribute::SwiftError:      return 1ULL << 52;
   case Attribute::WriteOnly:       return 1ULL << 53;
   case Attribute::Speculatable:    return 1ULL << 54;
+  case Attribute::StrictFP:        return 1ULL << 55;
   case Attribute::Dereferenceable:
     llvm_unreachable("dereferenceable attribute not supported in raw format");
     break;
@@ -1345,6 +1346,8 @@
     return Attribute::StackProtectStrong;
   case bitc::ATTR_KIND_SAFESTACK:
     return Attribute::SafeStack;
+  case bitc::ATTR_KIND_STRICT_FP:
+    return Attribute::StrictFP;
   case bitc::ATTR_KIND_STRUCT_RET:
     return Attribute::StructRet;
   case bitc::ATTR_KIND_SANITIZE_ADDRESS:

llvm/lib/Bitcode/Writer/BitcodeWriter.cpp

diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index ac54f16..fc58718 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -610,6 +610,8 @@
     return bitc::ATTR_KIND_STACK_PROTECT_STRONG;
   case Attribute::SafeStack:
     return bitc::ATTR_KIND_SAFESTACK;
+  case Attribute::StrictFP:
+    return bitc::ATTR_KIND_STRICT_FP;
   case Attribute::StructRet:
     return bitc::ATTR_KIND_STRUCT_RET;
   case Attribute::SanitizeAddress: