[llvm-bugs] [Bug 48159] New: Inline asm macros cannot replace instructions

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48159

            Bug ID: 48159
           Summary: Inline asm macros cannot replace instructions
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: royger at freebsd.org
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

Hello,

Inline asm macros are not able to replace instructions, see:

void test(void) {
        asm volatile (".macro ret; .error; .endm; .macro retq; .error; .endm");
}

Trying to build the following snippet with gcc will trigger the .error
directive, while it builds fine with all versions of clang I've tested with.

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