[LLVMbugs] [Bug 20595] New: [ARM] Integrated assembler does not support stmeqia instruction

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=20595

            Bug ID: 20595
           Summary: [ARM] Integrated assembler does not support stmeqia
                    instruction
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: ismail at donmez.ws
                CC: llvmbugs at cs.uiuc.edu, renato.golin at linaro.org
    Classification: Unclassified

This instruction is used for libffi's ARM assembly files. Apparently everybody
and their dog knows about this problem but instead of reporting a bug they used
-no-integrated-as.

Reproducer:

> cat libffi-3.1/sysv.S
stmeqia r2, {r0, r1}

> arm-linux-gnueabihf-gcc -c sysv.S
> echo $?
0

> clang -v
clang version 3.6.0 (trunk 214951)
Target: armv7a-unknown-linux-gnueabihf
[...]

> arm-clang -c sysv.S
sysv.S:1:1: error: invalid instruction
stmeqia r2, {r0, r1}
^

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