llvm-project.git/clang/test/CodeGen/basic-block-sections.c, branch users/nico/python-2

Basic block sections should enable not function sections implicitly.

2021-02-17T20:37:50+00:00

Basic block sections enables function sections implicitly, this is not needed
and is inefficient with "=list" option.

We had basic block sections enable function sections implicitly in clang. This
is particularly inefficient with "=list" option as it places functions that do
not have any basic block sections in separate sections. This causes unnecessary
object file overhead for large applications.

This patch disables this implicit behavior. It only creates function sections
for those functions that require basic block sections.

This patch is the second of two patches and this patch removes the implicit
enabling of function sections with basic block sections in clang.

Differential Revision: https://reviews.llvm.org/D93876

[test] Use host platform specific error message substitution in lit tests

2021-01-29T12:16:30+00:00

On z/OS, the following error message is not matched correctly in lit tests.

```
EDC5129I No such file or directory.
```

This patch uses a lit config substitution to check for platform specific error messages.

Reviewed By: muiez, jhenderson

Differential Revision: https://reviews.llvm.org/D95246

Revert "[SystemZ][z/OS] Fix No such file or directory expression error"

2021-01-25T13:29:38+00:00

This reverts commit 06f8a49693957bc27b83e0ab5f429ff874941a07.

[SystemZ][z/OS] Fix No such file or directory expression error matching in lit tests

2021-01-18T12:14:37+00:00

On z/OS, the following error message is not matched correctly in lit tests. This patch updates the CHECK expression to match successfully.
```
EDC5129I No such file or directory.
```

Reviewed By: muiez

Differential Revision: https://reviews.llvm.org/D94239

Append ".__part." to every basic block section symbol.

2020-12-23T19:35:44+00:00

Every basic block section symbol created by -fbasic-block-sections will contain
".__part." to know that this symbol corresponds to a basic block fragment of
the function.

This patch solves two problems:

a) Like D89617, we want function symbols with suffixes to be properly qualified
   so that external tools like profile aggregators know exactly what this
   symbol corresponds to.
b) The current basic block naming just adds a ".N" to the symbol name where N is
   some integer. This collides with how clang creates __cxx_global_var_init.N.
   clang creates these symbol names to call constructor functions and basic
   block symbol naming should not use the same style.

Fixed all the test cases and added an extra test for __cxx_global_var_init
breakage.

Differential Revision: https://reviews.llvm.org/D93082

-fbasic-block-sections=list=: Suppress output if failed to open the file

2020-11-09T17:26:37+00:00

Reviewed By: tmsriram

Differential Revision: https://reviews.llvm.org/D90815

Simple fix to basic-block-sections to replace emit-obj with emit-llvm

2020-10-21T20:52:33+00:00

emit-obj is unnecessary here and further wasn't redirected to /dev/null.

[clang testing] Fix a read-only source build system failure

2020-10-21T12:08:03+00:00

[test] Fix -fbasic-block-sections= test on Windows after D89500

2020-10-21T01:31:28+00:00

Improve file doesnt exist error with -fbasic-block-sections=

2020-10-20T23:41:56+00:00

With -fbasicblock-sections=, let the front-end handle the case where the file
doesnt exist. The driver only checks if the option syntax is right.

Differential Revision: https://reviews.llvm.org/D89500