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x86: math-emu: Fix up 'cmp' insn for clang ias

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The clang integrated assembler requires the 'cmp' instruction to
have a length prefix here:

arch/x86/math-emu/wm_sqrt.S:212:2: error: ambiguous instructions require an explicit suffix (could be 'cmpb', 'cmpw', or 'cmpl')
 cmp $0xffffffff,-24(%ebp)
 ^

Make this a 32-bit comparison, which it was clearly meant to be.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lkml.kernel.org/r/20200527135352.1198078-1-arnd@arndb.de
This commit is contained in:
Arnd Bergmann 2020-05-27 15:53:46 +02:00 committed by Thomas Gleixner
parent 5769fe26f3
commit 81e96851ea
1 changed files with 1 additions and 1 deletions
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2
arch/x86/math-emu/wm_sqrt.S
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@ -209,7 +209,7 @@ sqrt_stage_2_finish:
#ifdef PARANOID
/* It should be possible to get here only if the arg is ffff....ffff */
cmp $0xffffffff,FPU_fsqrt_arg_1
cmpl $0xffffffff,FPU_fsqrt_arg_1
jnz sqrt_stage_2_error
#endif /* PARANOID */