llvm/module-flags-pic-2-a.ll at a87c35420be5178e39b87f076c5dfd93ffa727f4 - llvm - Gitea: Git with a cup of tea

RPCS3/llvm

mirror of https://github.com/RPCS3/llvm.git synced 2024-12-22 12:08:33 +00:00

Justin Hibbits 893f22f882 Add Position-independent Code model Module API.

Summary:
This makes PIC levels a Module flag attribute, which can be queried by the
backend.  The flag is named `PIC Level`, and can have a value of:

  0 - Backend-default
  1 - Small-model (-fpic)
  2 - Large-model (-fPIC)

These match the `-pic-level' command line argument for clang, and the value of the
preprocessor macro `__PIC__'.

Test Plan:
New flags tests specific for the 'PIC Level' module flag.
Tests to be added as part of a future commit for PowerPC, which will use this new API.

Reviewers: rafael, echristo

Reviewed By: rafael, echristo

Subscribers: rafael, llvm-commits

Differential Revision: http://reviews.llvm.org/D5882

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221510 91177308-0d34-0410-b5e6-96231b3b80d8

2014-11-07 04:46:10 +00:00

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 ; RUN: not llvm-link %s %p/Inputs/module-flags-pic-2-b.ll -S -o - 2> %t
 ; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
 ; test linking modules with two different PIC levels
 !0 = metadata !{ i32 1, metadata !"PIC Level", i32 1 }
 !llvm.module.flags = !{!0}
 ; CHECK-ERRORS: ERROR: linking module flags 'PIC Level': IDs have conflicting values