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| author | John McCall <rjmccall@apple.com> | 2010-07-13 20:32:21 +0000 |
|---|---|---|
| committer | John McCall <rjmccall@apple.com> | 2010-07-13 20:32:21 +0000 |
| commit | 2b7fc3828e2245604a9b518167418d4bf650d5f2 (patch) | |
| tree | 4c139957fc2a59adadc0315e4f5dead1e551c2ac /clang/lib/CodeGen/CGObjCMac.cpp | |
| parent | caca5488dc290c3cbca702a90e3f7a8be7b23c06 (diff) | |
| download | bcm5719-llvm-2b7fc3828e2245604a9b518167418d4bf650d5f2.tar.gz bcm5719-llvm-2b7fc3828e2245604a9b518167418d4bf650d5f2.zip | |
Teach IR generation how to lazily emit cleanups. This has a lot of advantages,
mostly in avoiding unnecessary work at compile time but also in producing more
sensible block orderings.
Move the destructor cleanups for local variables over to use lazy cleanups.
Eventually all cleanups will do this; for now we have some awkward code
duplication.
Tell IR generation just to never produce landing pads in -fno-exceptions.
This is a much more comprehensive solution to a problem which previously was
half-solved by checks in most cleanup-generation spots.
llvm-svn: 108270
Diffstat (limited to 'clang/lib/CodeGen/CGObjCMac.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGObjCMac.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/clang/lib/CodeGen/CGObjCMac.cpp b/clang/lib/CodeGen/CGObjCMac.cpp index 0a766d5c821..72935373027 100644 --- a/clang/lib/CodeGen/CGObjCMac.cpp +++ b/clang/lib/CodeGen/CGObjCMac.cpp @@ -2697,8 +2697,7 @@ void CGObjCMac::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, // Push a normal cleanup to leave the try scope. { - CodeGenFunction::CleanupBlock - FinallyScope(CGF, CodeGenFunction::NormalCleanup); + CodeGenFunction::CleanupBlock FinallyScope(CGF, NormalCleanup); // Check whether we need to call objc_exception_try_exit. // In optimized code, this branch will always be folded. @@ -5693,8 +5692,7 @@ CGObjCNonFragileABIMac::EmitSynchronizedStmt(CodeGen::CodeGenFunction &CGF, // Register an all-paths cleanup to release the lock. { - CodeGenFunction::CleanupBlock - ReleaseScope(CGF, CodeGenFunction::NormalAndEHCleanup); + CodeGenFunction::CleanupBlock ReleaseScope(CGF, NormalAndEHCleanup); CGF.Builder.CreateCall(ObjCTypes.getSyncExitFn(), SyncArg) ->setDoesNotThrow(); @@ -5804,8 +5802,7 @@ void CGObjCNonFragileABIMac::EmitTryStmt(CodeGen::CodeGenFunction &CGF, // Add a cleanup to leave the catch. { - CodeGenFunction::CleanupBlock - EndCatchBlock(CGF, CodeGenFunction::NormalAndEHCleanup); + CodeGenFunction::CleanupBlock EndCatchBlock(CGF, NormalAndEHCleanup); // __objc_end_catch never throws. CGF.Builder.CreateCall(ObjCTypes.getObjCEndCatchFn()) |
