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Author SHA1 Message Date
Juneyoung Lee 8ca4b3ef19 [Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default (2) 
This patch updates test files after D105169.
Autogenerated test codes are changed by `utils/update_cc_test_checks.py,` and non-autogenerated test codes are changed as follows:

(1) I wrote a python script that (partially) updates the tests using regex: {F18594904} The script is not perfect, but I believe it gives hints about which patterns are updated to have `noundef` attached.

(2) The remaining tests are updated manually.

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D108453
 2021-10-16 12:01:41 +09:00
Jeroen Dobbelaere 46757ccb49 [clang] functions with the 'const' or 'pure' attribute must always return. 
As described in
* https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-pure-function-attribute
* https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-const-function-attribute

An `__attribute__((pure))` function must always return, as well as an `__attribute__((const))` function.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D96960
 2021-02-18 17:29:46 +01:00
Fangrui Song fd739804e0 [test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences 
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.

To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.

To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
 2020-12-31 00:27:11 -08:00
Fangrui Song dbc96b518b Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" 
This reverts commit 789a46f2d7.

Accidentally committed.
 2020-02-03 10:09:39 -08:00
Fangrui Song 789a46f2d7 [CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition 
Summary:
Clang -fpic defaults to -fno-semantic-interposition (GCC -fpic defaults
to -fsemantic-interposition).
Users need to specify -fsemantic-interposition to get semantic
interposition behavior.

Semantic interposition is currently a best-effort feature. There may
still be some cases where it is not handled well.

Reviewers: peter.smith, rnk, serge-sans-paille, sfertile, jfb, jdoerfert

Subscribers: dschuff, jyknight, dylanmckay, nemanjai, jvesely, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, arphaman, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73865
 2020-02-03 09:52:48 -08:00
Nirav Dave e585b5c52b Fix broken tests from no-jump-table commit 
Summary: Fix failing tests from no-jump-table flag addition

Reviewers: jyknight

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D18801

llvm-svn: 265439
 2016-04-05 18:59:37 +00:00
Bill Wendling 706469b453 Add more of the command line options as attribute flags. 
These can be easily queried by the back-end.

llvm-svn: 176304
 2013-02-28 22:49:57 +00:00
Bill Wendling 2386bb130c Reapply r176133 with testcase fixes. 
llvm-svn: 176145
 2013-02-27 00:06:04 +00:00
Anna Zaks 0f424b029b Revert "Add more attributes from the command line to functions." 
This reverts commit 176009.

The commit is a likely cause of several buildbot failures.

llvm-svn: 176044
 2013-02-25 19:51:03 +00:00
Bill Wendling 87869db5f5 Add more attributes from the command line to functions. 
This is an ongoing process. Any command line option which a back-end cares about
should be added here.

llvm-svn: 176009
 2013-02-25 07:15:16 +00:00
Bill Wendling 19457e282e Update tests so that we don't test for function-only attributes on call sites. 
llvm-svn: 175921
 2013-02-22 21:12:51 +00:00
Bill Wendling e1c4a1babd Update to use references to attribute groups instead of listing the attributes on the call/invoke instructions. 
llvm-svn: 175878
 2013-02-22 09:10:20 +00:00
Bill Wendling c33fc4c004 Modify the tests to use attribute group references instead of listing the 
function attributes.

llvm-svn: 175606
 2013-02-20 07:22:19 +00:00
Bill Wendling 985d1c5d15 Add the 'target-cpu' and 'target-features' attributes to functions. 
The back-end will use these values to reconfigure code generation for different
features.

llvm-svn: 175308
 2013-02-15 21:30:01 +00:00
Ulrich Weigand 35668cc401 A number of test cases assume that an "int" parameter or return value 
will be represented in the IR as a plain "i32" type.  This causes the
tests to spuriously fail on platforms where int is not a 32-bit type,
or where the ABI requires attributes like "signext" or "zeroext" to
be used.

This patch adds -triple or -target parameters to force those tests
to use the i386-unknown-unknown target.

llvm-svn: 166551
 2012-10-24 12:22:56 +00:00
Eric Christopher d9afc5c749 FileCheckize this test. 
llvm-svn: 137671
 2011-08-15 22:48:14 +00:00
Eric Christopher bf005ecd9c 'pure' and 'const' functions should also be marked nounwind. Migrate 
test over from llvm/test/FrontendC++ and update others to account for
the change.

llvm-svn: 137669
 2011-08-15 22:38:22 +00:00