[LLVMbugs] [Bug 4557] New: differences with -tradtional compared to gcc

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=4557

           Summary: differences with -tradtional compared to gcc
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: NetBSD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: preprocessor
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: krister.walfridsson at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=3197)
 --> (http://llvm.org/bugs/attachment.cgi?id=3197)
The example mentioned in the bug report

"clang -traditional" gives different output compared to "gcc -traditional" on
the following example. (This prevents the NetBSD kernel from building using
clang, as this construct is used in several .S files...)

Example:
#define INTRSTUB(name, num) \
intr_/**/name/**/num: \
        nop
INTRSTUB(legacy,0)


"clang -traditional -E foo.S" outputs this as "intr_ legacy 0: nop"
"gcc -traditional -E foo.S" outputs this as "intr_legacy0: nop"

The clang version used: svn revision 75635.


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