diff options
| author | Jim Grosbach <grosbach@apple.com> | 2012-03-16 20:48:38 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2012-03-16 20:48:38 +0000 |
| commit | be7cf2b377d987f46d10f54f89ae4e1a71c37f55 (patch) | |
| tree | 64685c5c515edefce569e72f549f9ceae5c3431d | |
| parent | 0ccae0b1f6b95e4500adb45649472389a1f111a7 (diff) | |
ARM ldm/stm register lists can be out of order.
It's not a good style idea, as the registers will be laid down in memory in
numerical order, not the order they're in the list, but it's legal. vldm/vstm
are stricter.
rdar://11064740
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152943 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 8 | ||||
| -rw-r--r-- | test/MC/ARM/diagnostics.s | 2 |
2 files changed, 7 insertions, 3 deletions
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index 29a9b0d844..8f3bd6dffe 100644 --- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -2854,8 +2854,12 @@ parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) { if (!RC->contains(Reg)) return Error(RegLoc, "invalid register in register list"); // List must be monotonically increasing. - if (getARMRegisterNumbering(Reg) < getARMRegisterNumbering(OldReg)) - return Error(RegLoc, "register list not in ascending order"); + if (getARMRegisterNumbering(Reg) < getARMRegisterNumbering(OldReg)) { + if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg)) + Warning(RegLoc, "register list not in ascending order"); + else + return Error(RegLoc, "register list not in ascending order"); + } if (getARMRegisterNumbering(Reg) == getARMRegisterNumbering(OldReg)) { Warning(RegLoc, "duplicated register (" + RegTok.getString() + ") in register list"); diff --git a/test/MC/ARM/diagnostics.s b/test/MC/ARM/diagnostics.s index f722dd7c07..7da79c31dc 100644 --- a/test/MC/ARM/diagnostics.s +++ b/test/MC/ARM/diagnostics.s @@ -216,7 +216,7 @@ @ Out of order STM registers stmda sp!, {r5, r2} -@ CHECK-ERRORS: error: register list not in ascending order +@ CHECK-ERRORS: warning: register list not in ascending order @ CHECK-ERRORS: stmda sp!, {r5, r2} @ CHECK-ERRORS: ^ |