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[mips] Attempting to use register $32 should be an error instead of an assertion.

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Reviewers: matheusalmeida

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3201

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204932 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Sanders 2014-03-27 15:00:44 +00:00
parent aebc63ab2e
commit 16dc6ed33f
2 changed files with 9 additions and 1 deletions
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2
lib/Target/Mips/AsmParser/MipsAsmParser.cpp
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@ -1217,7 +1217,7 @@ unsigned MipsAsmParser::getGPR(int RegNo) {
int MipsAsmParser::matchRegisterByNumber(unsigned RegNum, unsigned RegClass) {
if (RegNum >
getContext().getRegisterInfo()->getRegClass(RegClass).getNumRegs())
getContext().getRegisterInfo()->getRegClass(RegClass).getNumRegs() - 1)
return -1;
if (RegClass == Mips::GPR32RegClassID || RegClass == Mips::GPR64RegClassID)

8
test/MC/Mips/mips-register-names-invalid.s Normal file
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@ -0,0 +1,8 @@
# RUN: not llvm-mc %s -triple=mips-unknown-freebsd -show-encoding 2>%t0
# RUN: FileCheck %s < %t0
# $32 used to trigger an assertion instead of the usual error message due to
# an off-by-one bug.
# CHECK: :[[@LINE+1]]:18: error: invalid operand for instruction
add $32, $0, $0