6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-09-24 23:28:41 +00:00
Code Issues Projects Releases Wiki Activity

[SparcV9]: Do not emit .register directives for global registers that are clobbered by calls but not used in the function itself.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195574 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Venkatraman Govindaraju
2013-11-24 18:41:49 +00:00
parent 591719e304
commit cf09ce3b08
2 changed files with 1 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Target/Sparc/SparcAsmPrinter.cpp
View File

@@ -88,7 +88,7 @@ void SparcAsmPrinter::EmitFunctionBodyStart() {
const unsigned globalRegs[] = { SP::G2, SP::G3, SP::G6, SP::G7, 0 };
for (unsigned i = 0; globalRegs[i] != 0; ++i) {
unsigned reg = globalRegs[i];
if (!MRI.isPhysRegUsed(reg))
if (MRI.use_empty(reg))
continue;
EmitGlobalRegisterDecl(reg);
}