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Add strictfp attribute to prevent unwanted optimizations of libm calls

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

llvm-svn: 310885
This commit is contained in:
Andrew Kaylor
2017-08-14 21:15:13 +00:00
parent 8bf15723ae
commit 53a5fbb45f
22 changed files with 172 additions and 83 deletions
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3
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -1137,6 +1137,7 @@ static uint64_t getRawAttributeMask(Attribute::AttrKind Val) {
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 @@ static Attribute::AttrKind getAttrFromCode(uint64_t Code) {
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: