diff options
Diffstat (limited to 'lib/CodeGen/Analysis.cpp')
| -rw-r--r-- | lib/CodeGen/Analysis.cpp | 62 |
1 files changed, 35 insertions, 27 deletions
diff --git a/lib/CodeGen/Analysis.cpp b/lib/CodeGen/Analysis.cpp index fafc01044d..fc28b21194 100644 --- a/lib/CodeGen/Analysis.cpp +++ b/lib/CodeGen/Analysis.cpp @@ -1,4 +1,4 @@ -//===-- Analysis.cpp - CodeGen LLVM IR Analysis Utilities --*- C++ ------*-===// +//===-- Analysis.cpp - CodeGen LLVM IR Analysis Utilities -----------------===// // // The LLVM Compiler Infrastructure // @@ -149,33 +149,40 @@ llvm::hasInlineAsmMemConstraint(InlineAsm::ConstraintInfoVector &CInfos, /// consideration of global floating-point math flags. /// ISD::CondCode llvm::getFCmpCondCode(FCmpInst::Predicate Pred) { - ISD::CondCode FPC, FOC; switch (Pred) { - case FCmpInst::FCMP_FALSE: FOC = FPC = ISD::SETFALSE; break; - case FCmpInst::FCMP_OEQ: FOC = ISD::SETEQ; FPC = ISD::SETOEQ; break; - case FCmpInst::FCMP_OGT: FOC = ISD::SETGT; FPC = ISD::SETOGT; break; - case FCmpInst::FCMP_OGE: FOC = ISD::SETGE; FPC = ISD::SETOGE; break; - case FCmpInst::FCMP_OLT: FOC = ISD::SETLT; FPC = ISD::SETOLT; break; - case FCmpInst::FCMP_OLE: FOC = ISD::SETLE; FPC = ISD::SETOLE; break; - case FCmpInst::FCMP_ONE: FOC = ISD::SETNE; FPC = ISD::SETONE; break; - case FCmpInst::FCMP_ORD: FOC = FPC = ISD::SETO; break; - case FCmpInst::FCMP_UNO: FOC = FPC = ISD::SETUO; break; - case FCmpInst::FCMP_UEQ: FOC = ISD::SETEQ; FPC = ISD::SETUEQ; break; - case FCmpInst::FCMP_UGT: FOC = ISD::SETGT; FPC = ISD::SETUGT; break; - case FCmpInst::FCMP_UGE: FOC = ISD::SETGE; FPC = ISD::SETUGE; break; - case FCmpInst::FCMP_ULT: FOC = ISD::SETLT; FPC = ISD::SETULT; break; - case FCmpInst::FCMP_ULE: FOC = ISD::SETLE; FPC = ISD::SETULE; break; - case FCmpInst::FCMP_UNE: FOC = ISD::SETNE; FPC = ISD::SETUNE; break; - case FCmpInst::FCMP_TRUE: FOC = FPC = ISD::SETTRUE; break; - default: - llvm_unreachable("Invalid FCmp predicate opcode!"); - FOC = FPC = ISD::SETFALSE; - break; + case FCmpInst::FCMP_FALSE: return ISD::SETFALSE; + case FCmpInst::FCMP_OEQ: return ISD::SETOEQ; + case FCmpInst::FCMP_OGT: return ISD::SETOGT; + case FCmpInst::FCMP_OGE: return ISD::SETOGE; + case FCmpInst::FCMP_OLT: return ISD::SETOLT; + case FCmpInst::FCMP_OLE: return ISD::SETOLE; + case FCmpInst::FCMP_ONE: return ISD::SETONE; + case FCmpInst::FCMP_ORD: return ISD::SETO; + case FCmpInst::FCMP_UNO: return ISD::SETUO; + case FCmpInst::FCMP_UEQ: return ISD::SETUEQ; + case FCmpInst::FCMP_UGT: return ISD::SETUGT; + case FCmpInst::FCMP_UGE: return ISD::SETUGE; + case FCmpInst::FCMP_ULT: return ISD::SETULT; + case FCmpInst::FCMP_ULE: return ISD::SETULE; + case FCmpInst::FCMP_UNE: return ISD::SETUNE; + case FCmpInst::FCMP_TRUE: return ISD::SETTRUE; + default: break; + } + llvm_unreachable("Invalid FCmp predicate opcode!"); + return ISD::SETFALSE; +} + +ISD::CondCode llvm::getFCmpCodeWithoutNaN(ISD::CondCode CC) { + switch (CC) { + case ISD::SETOEQ: case ISD::SETUEQ: return ISD::SETEQ; + case ISD::SETONE: case ISD::SETUNE: return ISD::SETNE; + case ISD::SETOLT: case ISD::SETULT: return ISD::SETLT; + case ISD::SETOLE: case ISD::SETULE: return ISD::SETLE; + case ISD::SETOGT: case ISD::SETUGT: return ISD::SETGT; + case ISD::SETOGE: case ISD::SETUGE: return ISD::SETGE; + default: break; } - if (NoNaNsFPMath) - return FOC; - else - return FPC; + return CC; } /// getICmpCondCode - Return the ISD condition code corresponding to @@ -221,7 +228,8 @@ bool llvm::isInTailCallPosition(ImmutableCallSite CS, Attributes CalleeRetAttr, // longjmp on x86), it can end up causing miscompilation that has not // been fully understood. if (!Ret && - (!GuaranteedTailCallOpt || !isa<UnreachableInst>(Term))) return false; + (!TLI.getTargetMachine().Options.GuaranteedTailCallOpt || + !isa<UnreachableInst>(Term))) return false; // If I will have a chain, make sure no other instruction that will have a // chain interposes between I and the return. |