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AsmParser: More generic support for integer type suffices.

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For integer constants, allow 'L', 'UL' as well as 'ULL' and 'LL'. This provides
better support for shared headers between .s and .c files that define bunches
of constant values.

rdar://9321056

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176118 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2013-02-26 20:17:10 +00:00
parent d06c9cb9bb
commit ac67b50fcf
2 changed files with 15 additions and 6 deletions
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15
lib/MC/MCParser/AsmLexer.cpp
View File

@ -156,10 +156,13 @@ AsmToken AsmLexer::LexLineComment() {
}
static void SkipIgnoredIntegerSuffix(const char *&CurPtr) {
if (CurPtr[0] == 'L' && CurPtr[1] == 'L')
CurPtr += 2;
if (CurPtr[0] == 'U' && CurPtr[1] == 'L' && CurPtr[2] == 'L')
CurPtr += 3;
// Skip ULL, UL, U, L and LL suffices.
if (CurPtr[0] == 'U')
++CurPtr;
if (CurPtr[0] == 'L')
++CurPtr;
if (CurPtr[0] == 'L')
++CurPtr;
}
// Look ahead to search for first non-hex digit, if it's [hH], then we treat the
@ -220,8 +223,8 @@ AsmToken AsmLexer::LexDigit() {
if (Radix == 2 || Radix == 16)
++CurPtr;
// The darwin/x86 (and x86-64) assembler accepts and ignores ULL and LL
// suffixes on integer literals.
// The darwin/x86 (and x86-64) assembler accepts and ignores type
// suffices on integer literals.
SkipIgnoredIntegerSuffix(CurPtr);
return AsmToken(AsmToken::Integer, Result, Value);

6
test/MC/AsmParser/directive_values.s
View File

@ -63,3 +63,9 @@ TEST7:
# CHECK-NEXT: .byte 2
# CHECK-NEXT: .byte 3
# CHECK-NEXT: .byte 4
TEST8:
.long 0x200000UL+1
.long 0x200000L+1
# CHECK: .long 2097153
# CHECK: .long 2097153