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ARM IAS: fix diagnostics of improper qualification

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An improper qualifier would result in a superfluous error due to the parser not
consuming the remainder of the statement.  Simply consume the remainder of the
statement to avoid the error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199035 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool 2014-01-12 05:25:44 +00:00
parent fcb6800dd4
commit 3d83eb48ac
2 changed files with 16 additions and 0 deletions
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1
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
View File

@ -5325,6 +5325,7 @@ bool ARMAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
// For for ARM mode generate an error if the .n qualifier is used.
if (ExtraToken == ".n" && !isThumb()) {
SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
Parser.eatToEndOfStatement();
return Error(Loc, "instruction with .n (narrow) qualifier not allowed in "
"arm mode");
}

15
test/MC/ARM/arm-qualifier-diagnostics.s Normal file
View File

@ -0,0 +1,15 @@
@ RUN: not llvm-mc -triple armv7-eabi -filetype asm -o - %s 2>&1 | FileCheck %s
.syntax unified
.type function,%function
function:
ldr.n r0, [r0]
@ CHECK: error: instruction with .n (narrow) qualifier not allowed in arm mode
@ CHECK: ldr.n r0, [r0]
@ CHECK: ^
@ CHECK-NOT: error: unexpected token in operand
@ CHECK-NOT: ldr.n r0, [r0]
@ CHECK-NOT: ^