Commit Graph

8 Commits

Author SHA1 Message Date
Chad Rosier c8e56e8931 [driver, ms-inline asm] MS-Style inline assembly is controlled by the
-fasm-blocks flag, not the -fms-extensions flag.
rdar://12808010

llvm-svn: 169422
2012-12-05 21:08:21 +00:00
Chad Rosier 175ea24e38 [ms-inline asm] Change the -fenable-experimental-ms-inline-asm option from a
CodeGen option to a LangOpt option.  In turn, hoist the guard into the parser 
so that we avoid the new (and fairly unstable) Sema/AST/CodeGen logic.  This
should restore the behavior of clang to that prior to r158325.
<rdar://problem/12163681>

llvm-svn: 162602
2012-08-24 21:42:51 +00:00
Chad Rosier aa7c1cb5f8 [ms-inline asm] MSVC parses multiple __asm statements on a single line as one
statement.  For example,

  if (x)
    __asm out dx, ax  __asm out dx, ax

results in a single inline asm statement (i.e., both "out dx, ax" statements are
predicated on if(x)).

llvm-svn: 161986
2012-08-15 21:03:27 +00:00
Chad Rosier c97a6bbfd8 [ms-inline asm] Add a helpful assert.
llvm-svn: 161890
2012-08-14 19:22:06 +00:00
Chad Rosier 43b7c021b3 [ms-style asm] Change the fatal error to an extension warning. Apparently, this
error was asserting on anything that included Windows.h.  MS-style inline asm is
still dropped, but at least now we're not completely silent about it.

llvm-svn: 158833
2012-06-20 18:28:37 +00:00
Chad Rosier 075608ecfc [ms-inline-asm] The __asm keyword is a statement separator, so multiple asm
statements are allowed on the same line.

llvm-svn: 158372
2012-06-12 20:30:26 +00:00
Chad Rosier 0764e0bb30 [ms-inline-asm] Cleanup MS style inline assembly parsing.
Specifically, improve the handling of whitespace, stop saving tokens that are
in comments and fix the case where we have a comment followed by a closing brace
on the next line.

Unfortunately, there's no easy way of testing this code.

llvm-svn: 158367
2012-06-12 19:03:42 +00:00
Eli Friedman a4b02c30de Some fixes for MS-style asm parsing: specifically, add some error checking, and handle asm comments using semicolons correctly. (The comments are actually surprisingly tricky.)
llvm-svn: 140837
2011-09-30 01:13:51 +00:00