diff options
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/InlineCost.cpp | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/lib/Analysis/InlineCost.cpp b/lib/Analysis/InlineCost.cpp index e12e322..65db33c 100644 --- a/lib/Analysis/InlineCost.cpp +++ b/lib/Analysis/InlineCost.cpp @@ -225,12 +225,11 @@ unsigned CodeMetrics::CountCodeReductionForAlloca(Value *V) { /// analyzeFunction - Fill in the current structure with information gleaned /// from the specified function. void CodeMetrics::analyzeFunction(Function *F, const TargetData *TD) { - // If this function contains a call to setjmp or _setjmp, never inline - // it. This is a hack because we depend on the user marking their local - // variables as volatile if they are live across a setjmp call, and they - // probably won't do this in callers. - if (F->callsFunctionThatReturnsTwice()) - callsSetJmp = true; + // If this function contains a call that "returns twice" (e.g., setjmp or + // _setjmp), never inline it. This is a hack because we depend on the user + // marking their local variables as volatile if they are live across a setjmp + // call, and they probably won't do this in callers. + callsSetJmp = F->hasFnAttr(Attribute::ReturnsTwice); // Look at the size of the callee. for (Function::const_iterator BB = F->begin(), E = F->end(); BB != E; ++BB) |