averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-21 12:14:44 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add a nothrow flag to the SIL apply_inst.

Browse Source 
If the compiler can prove that a throwing function actually does not throw it can
replace a try_apply with an "apply [nothrow]". Such an apply_inst calls a function
with an error result but does not have the overhead of checking for the error case.

Currently this flag is not set, yet.



Swift SVN r31151
This commit is contained in:
Erik Eckstein
2015-08-12 00:18:36 +00:00
parent aee63ec5d3
commit 388bc31ba7
27 changed files with 139 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
lib/SIL/SILInstructions.cpp
View File

@@ -180,10 +180,12 @@ ApplyInst::ApplyInst(SILLocation Loc, SILValue Callee,
SILType SubstCalleeTy,
SILType Result,
ArrayRef<Substitution> Subs,
ArrayRef<SILValue> Args)
ArrayRef<SILValue> Args,
bool isNonThrowing)
: ApplyInstBase(ValueKind::ApplyInst, Loc, Callee, SubstCalleeTy,
Subs, Args, Result)
{
setNonThrowing(isNonThrowing);
}
ApplyInst *ApplyInst::create(SILLocation Loc, SILValue Callee,
@@ -191,10 +193,11 @@ ApplyInst *ApplyInst::create(SILLocation Loc, SILValue Callee,
SILType Result,
ArrayRef<Substitution> Subs,
ArrayRef<SILValue> Args,
bool isNonThrowing,
SILFunction &F) {
void *Buffer = allocate(F, Subs, Args);
return ::new(Buffer) ApplyInst(Loc, Callee, SubstCalleeTy,
Result, Subs, Args);
Result, Subs, Args, isNonThrowing);
}
bool swift::doesApplyCalleeHaveSemantics(SILValue callee, StringRef semantics) {