diff options
| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-10-05 19:33:37 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-10-05 19:33:37 +0000 |
| commit | 87855d3013d9a87a3aeb51508312b76e200baac7 (patch) | |
| tree | d2199320270a83a7dbd2dafb89182f716896fa87 /lib/CodeGen/RegAllocFast.cpp | |
| parent | 617ba175da2885aa3e747ee7a00faa5ee4110579 (diff) | |
| download | llvm-87855d3013d9a87a3aeb51508312b76e200baac7.tar.gz llvm-87855d3013d9a87a3aeb51508312b76e200baac7.tar.bz2 llvm-87855d3013d9a87a3aeb51508312b76e200baac7.tar.xz | |
Emit a better error when running out of registers on inline asm.
The most likely case where this error happens is when the user specifies
too many register operands. Don't make it look like an internal LLVM bug
when we can see that the error is coming from an inline asm instruction.
For other instructions we keep the "ran out of registers" error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192041 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocFast.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocFast.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp index 400025074c..6c2e60b5c6 100644 --- a/lib/CodeGen/RegAllocFast.cpp +++ b/lib/CodeGen/RegAllocFast.cpp @@ -569,7 +569,10 @@ RAFast::LiveRegMap::iterator RAFast::allocVirtReg(MachineInstr *MI, } // Nothing we can do. Report an error and keep going with a bad allocation. - MI->emitError("ran out of registers during register allocation"); + if (MI->isInlineAsm()) + MI->emitError("inline assembly requires more registers than available"); + else + MI->emitError("ran out of registers during register allocation"); definePhysReg(MI, *AO.begin(), regFree); return assignVirtToPhysReg(VirtReg, *AO.begin()); } |