llvm dev - Mar 2014 - [LLVMdev] Question about volatile variable in X86 backend

Hi,
  I am trying to run gcc.c-torture cases by using clang(version 3.4 realse,debug
build).
And my command line is showed following.
clang fprintf-chk-1.c -O2 -c -o test.o
gcc test.o -o test.elf


Then I execute this object. However it fail with abort.
llvm doesn't support volatile variable?
This test case is from gcc/testsuite/gcc.c-torture/execute/fprintf-chk-1.c


Any suggestion will be appreciated.
Thanks a million in advance.
-Haishan
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Hi Haishan,
> Then I execute this object. However it fail with abort.
> llvm doesn't support volatile variable?
It looks like that test is actually trying to find out whether GCC
knows any special semantics for __fprintf_chk rather than whether it
can handle volatiles.

Clang doesn't do anything in particular with that function so it
"fails". It's compiling the file correctly as far as I can see.

Cheers.

Tim.