llvm-project/llvm/test/MC/Mips/cprestore-warning-unused.s

# RUN: llvm-mc %s -arch=mips -mcpu=mips32 --position-independent 2>%t1
# RUN: FileCheck %s < %t1

  .text
  .set noreorder
  .cpload $25
  .set reorder

  jal $25
# CHECK: :[[@LINE-1]]:3: warning: no .cprestore used in PIC mode
Don't pass a Reloc::Model to MC. MC only needs to know if the output is PIC or not. It never has to decide about creating GOTs and PLTs for example. The only thing that MC itself uses this information for is expanding "macros" in sparc and mips. The rest I am pretty sure could be moved to CodeGen. This is a cleanup and isolates the code from future changes to Reloc::Model. llvm-svn: 269909 2016-05-18 19:58:50 +08:00			`# RUN: llvm-mc %s -arch=mips -mcpu=mips32 --position-independent 2>%t1`
[mips] Add assembler support for the .cprestore directive. Summary: This assembler directive is used in O32 PIC to restore the current function's $gp after executing JAL's. The $gp is first stored on the stack at a user-specified offset. It has the following format: ".cprestore 8" (where 8 is the offset). This fixes llvm.org/PR20967. Patch by Toma Tabacu. Reviewers: seanbruno, tomatabacu Subscribers: brooks, seanbruno, emaste, llvm-commits Differential Revision: http://reviews.llvm.org/D6267 llvm-svn: 247897 2015-09-18 00:08:39 +08:00			`# RUN: FileCheck %s < %t1`

			`.text`
			`.set noreorder`
			`.cpload $25`
			`.set reorder`

			`jal $25`
			`# CHECK: :[[@LINE-1]]:3: warning: no .cprestore used in PIC mode`