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llvm-mirror/test/MC/ARM/comment.s
David Peixotto 5d70ac3303 Fix parsing of .symver directive on ARM
ARM assembly syntax uses @ for a comment, execpt for the second
parameter of the .symver directive which requires @ as part of the
symbol name. This commit fixes the parsing of this directive by
adding a special case for ARM for this one argumnet.

To make the change we had to move the AllowAtInIdentifier variable
to the MCAsmLexer interface (from AsmLexer) and expose a setter for
the value.  The ELFAsmParser then toggles this value when parsing
the second argument to the .symver directive for a target that
uses @ as a comment symbol

llvm-svn: 199339
2014-01-15 22:40:02 +00:00

48 lines
1.0 KiB
ArmAsm

@ Tests to check that '@' does not get lexed as an identifier for arm
@ RUN: llvm-mc %s -triple=armv7-linux-gnueabi | FileCheck %s
@ RUN: llvm-mc %s -triple=armv7-linux-gnueabi 2>&1 | FileCheck %s --check-prefix=ERROR
foo:
bl boo@plt should be ignored
bl goo@plt
.long bar@got to parse this as a comment
.long baz@got
add r0, r0@ignore this extra junk
@ the symver directive should allow @ in the second symbol name
defined1:
defined2:
defined3:
bar:
.symver defined1, bar1@zed
.symver defined2, bar3@@zed
.symver defined3, bar5@@@zed
far:
.long baz@got
@CHECK-LABEL: foo:
@CHECK: bl boo
@CHECK-NOT: @
@CHECK: bl goo
@CHECK-NOT: @
@CHECK: .long bar
@CHECK-NOT: @
@CHECK: .long baz
@CHECK-NOT: @
@CHECK: add r0, r0
@CHECK-NOT: @
@CHECK-LABEL: bar:
@CHECK: bar1@zed = defined1
@CHECK: bar3@@zed = defined2
@CHECK: bar5@@@zed = defined3
@ Make sure we did not mess up the parser state and it still lexes
@ comments correctly by excluding the @ in normal symbols
@CHECK-LABEL: far:
@CHECK: .long baz
@CHECK-NOT: @
@ERROR-NOT: error: