rnk added a comment. In https://reviews.llvm.org/D49240#1195237, @ldionne wrote:
> In https://reviews.llvm.org/D49240#1195125, @thakis wrote: > > > When we updated out clang bundle in chromium (which includes libc++ > > headers), our ios simulator bots regressed debug info size by ~50% due to > > this commit > > (https://bugs.chromium.org/p/chromium/issues/detail?id=872926#c13). Is that > > expected? > > > No, this is quite surprising. What happened with the size of the Release > builds? We should investigate, perhaps this change exposed something in > Clang's debug info generation. It looks like the increase is entirely from more symbols in the symbol table. It's not a problem with clang's debug info. It would help a lot if ld64 de-duplicated strings in the symbol table, if that's possible. $ bloaty after_base_unittests -- before_base_unittests VM SIZE FILE SIZE -------------- -------------- +103% +51.4Mi String Table +51.4Mi +103% +105% +17.6Mi Symbol Table +17.6Mi +105% +49% +827Ki Code Signature +827Ki +49% +92% +263Ki Function Start Addresses +263Ki +92% +15% +4.50Ki __TEXT,__unwind_info +4.50Ki +15% +74% +3.52Ki Table of Non-instructions +3.52Ki +74% -0.0% -128 __TEXT,__const -128 -0.0% -2.0% -136 [__TEXT] -136 -2.0% [ = ] 0 [Unmapped] -480 -3.4% -1.0% -516 __TEXT,__gcc_except_tab -516 -1.0% -39.3% -1.07Ki [__LINKEDIT] +4 +33% -9.8% -5.61Mi __TEXT,__text -5.61Mi -9.8% +50% +64.5Mi TOTAL +64.5Mi +50% Repository: rCXX libc++ https://reviews.llvm.org/D49240 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
