diff options
| author | Michael Ilseman <milseman@apple.com> | 2012-11-27 00:42:44 +0000 |
|---|---|---|
| committer | Michael Ilseman <milseman@apple.com> | 2012-11-27 00:42:44 +0000 |
| commit | 15c13d3e63d7745bccad74d547af4e3482193eaa (patch) | |
| tree | 7f27560aaf6fc5c3698d8a3a574545745350b98d /lib/AsmParser/LLParser.cpp | |
| parent | 4d265332341360a7cb5b15e2c2f0c675a7fed766 (diff) | |
Fast-math flags for LLVM IR parsing and printing
Added in the ability to read LLVM IR text that contains fast-math flags as a sequence of capital letters separated by spaces in any order. Added in the printing of the fast-math flags in a canonical order, and don't print the other flags when 'fast' is specified, as 'fast' implies all the others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168645 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AsmParser/LLParser.cpp')
| -rw-r--r-- | lib/AsmParser/LLParser.cpp | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp index 41cca68576..65f4245062 100644 --- a/lib/AsmParser/LLParser.cpp +++ b/lib/AsmParser/LLParser.cpp @@ -3012,7 +3012,17 @@ int LLParser::ParseInstruction(Instruction *&Inst, BasicBlock *BB, } case lltok::kw_fadd: case lltok::kw_fsub: - case lltok::kw_fmul: return ParseArithmetic(Inst, PFS, KeywordVal, 2); + case lltok::kw_fmul: + case lltok::kw_fdiv: + case lltok::kw_frem: { + FastMathFlags FMF = EatFastMathFlagsIfPresent(); + int Res = ParseArithmetic(Inst, PFS, KeywordVal, 2); + if (Res != 0) + return Res; + if (FMF.any()) + Inst->setFastMathFlags(FMF); + return 0; + } case lltok::kw_sdiv: case lltok::kw_udiv: @@ -3027,8 +3037,6 @@ int LLParser::ParseInstruction(Instruction *&Inst, BasicBlock *BB, case lltok::kw_urem: case lltok::kw_srem: return ParseArithmetic(Inst, PFS, KeywordVal, 1); - case lltok::kw_fdiv: - case lltok::kw_frem: return ParseArithmetic(Inst, PFS, KeywordVal, 2); case lltok::kw_and: case lltok::kw_or: case lltok::kw_xor: return ParseLogical(Inst, PFS, KeywordVal); |