Commit Graph

19 Commits

Author SHA1 Message Date
Steven Wu cb0d13fc23 Adding option -fno-inline-asm to disallow inline asm
Summary:
This patch add a new option to dis-allow all inline asm.
Any GCC style inline asm will be reported as an error.

Reviewers: rnk, echristo

Reviewed By: rnk, echristo

Subscribers: bob.wilson, rnk, echristo, rsmith, cfe-commits

Differential Revision: http://reviews.llvm.org/D6870

llvm-svn: 226340
2015-01-16 23:05:28 +00:00
Ehsan Akhgari 31097581aa ms-inline-asm: Scope inline asm labels to functions
Summary:
This fixes PR20023.  In order to implement this scoping rule, we piggy
back on the existing LabelDecl machinery, by creating LabelDecl's that
will carry the "internal" name of the inline assembly label, which we
will rewrite the asm label to.

Reviewers: rnk

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4589

llvm-svn: 218230
2014-09-22 02:21:54 +00:00
Ehsan Akhgari 2f93b448a8 clang-cl: Merge adjacent single-line __asm blocks
Summary:
This patch extends the __asm parser to make it keep parsing input tokens
as inline assembly if a single-line __asm line is followed by another line
starting with __asm too.  It also makes sure that we correctly keep
matching braces in such situations by separating the notions of how many
braces we are matching and whether we are in single-line asm block mode.

Reviewers: rnk

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4598

llvm-svn: 213916
2014-07-25 02:27:14 +00:00
Ehsan Akhgari 833ed943d6 Don't get confused on the number of braces when braces start after the first __asm
Summary:
Without this, we would not consume the closing brace which would cause
the parser to start consuming C++ and bad things would happen.

Reviewers: majnemer

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4505

llvm-svn: 213032
2014-07-15 02:21:41 +00:00
Ehsan Akhgari 0f89fac7a5 Add support for nested blocks in Microsoft inline assembly
This fixes http://llvm.org/PR20204.

llvm-svn: 212389
2014-07-06 05:26:54 +00:00
Alp Toker 75e225318f Re-enable ms inline asm parser test.
LLVM r196044 should make it pass.

llvm-svn: 196734
2013-12-08 21:12:27 +00:00
Renato Golin 7b80076b79 Temporarily disabling ms-asm test
llvm-svn: 173510
2013-01-25 22:13:50 +00:00
Chad Rosier 10280a5ef4 Add a triple, per Ben's suggestion.
llvm-svn: 173198
2013-01-22 21:39:58 +00:00
Chad Rosier 163ca0e95e Second attempt to fix ppc bots.
llvm-svn: 173193
2013-01-22 20:57:10 +00:00
Chad Rosier 0c0c02c479 Add x86 requirement to hopefully fix ppc bots.
llvm-svn: 173190
2013-01-22 20:16:41 +00:00
Chad Rosier 33a6e11c21 [ms-inline asm] Remove a warning about ms-style inline assembly not being
supported.

llvm-svn: 173177
2013-01-22 18:18:22 +00:00
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