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Gcc Error Output Format


Jul 28, 2008 Posts: 7 View posts #1 Posted by kml013: Mon. Possible values for language are: c c-header c-cpp-output c++ c++-header c++-cpp-output objective-c objective-c-header objective-c-cpp-output objective-c++ objective-c++-header objective-c++-cpp-output assembler assembler-with-cpp ada f77 f77-cpp-input f95 f95-cpp-input java -x none Turn off any specification Range information is very useful for cases involving precedence issues and many other cases. $ gcc-4.9 -fsyntax-only t.c t.c: In function 'int f(int, int)': t.c:7:39: error: invalid operands to binary + However, many system allocators do not promise to return memory that is more than 8-byte or 16-byte-aligned. check over here

Functions that would normally be built in but do not have semantics defined by ISO C (such as "alloca" and "ffs") are not built-in functions when -ansi is used. -std= Determine The compiler may use a different model if the selected model is not supported by the target, or if a more efficient model can be used. The -fno-crash-diagnostics flag can be helpful for speeding the process of generating a delta reduced test case. The file is divided into sections, which correspond to each of the functions with profile information.


Among the consequences of these changes are that static data members of the same type with the same name but defined in different shared objects will be different, so changing one even constant initialized arrays or initialized constant variables with integral or floating point types. For example, in this output, the block containing the callsite of foo was executed 3000 times according to the profile data: s.c:7:10: remark: foo inlined into bar (hotness: 3000) [-Rpass-analysis=inline] sum This option was first supported in GCC 4.3.

The clang command-line compiler driver uses this information to print "point diagnostics". (IDEs can use the information to display in-line error markup.) This is nice because it makes it very easy For example -std=gnu89 -pedantic would warn about C ++ style // comments, while -std=gnu99 -pedantic would not. Options to Control Clang Crash Diagnostics¶ As unbelievable as it may sound, Clang does crash from time to time. Use the merge command of the llvm-profdata tool to do this. $ llvm-profdata merge -output=code.profdata code-*.profraw Note that this step is necessary even when there is only one "raw"

In the following example, Clang warns about the use of a GCC extension that has been considered obsolete since 1993. It also turns on the following optimization flags: -fforce-mem -foptimize-sibling-calls -fstrength-reduce -fcse-follow-jumps -fcse-skip-blocks -frerun-cse-after-loop -frerun-loop-opt -fgcse -fgcse-lm -fgcse-sm -fdelete-null-pointer-checks -fexpensive-optimizations -fregmove -fschedule-insns -fschedule-insns2 -fsched-interblock -fsched-spec -fcaller-saves -fpeephole2 -freorder-blocks -freorder-functions -fstrict-aliasing -falign-functions share|improve this answer answered Mar 17 '09 at 23:43 Mr Fooz 40.8k35184 1 Hey, I posted that with a temp account and now I can't follow up with it, but template void f(typename Q::X) {} template