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* i386.md (mulsi3): Tweak to work with SCO OSR5 COFF assembler.

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From-SVN: r30153
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Mark Mitchell 1999-10-25 06:30:37 +00:00 • committed by Mark Mitchell
parent ad678cb0ed
commit 20819a093e
2 changed files with 17 additions and 3 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
Sun Oct 24 20:52:40 1999 Mark Mitchell <mark@codesourcery.com>
* i386.md (mulsi3): Tweak to work with SCO OSR5 COFF assembler.
Sun Oct 24 21:02:46 1999 Richard Henderson <rth@cygnus.com>
* i386.md (*lea_0): Collapse addsi_0, addsi_lea_[123] into

16
gcc/config/i386/i386.md
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@ -3641,11 +3641,21 @@
(match_operand:SI 2 "general_operand" "K,i,mr")))
(clobber (reg:CC 17))]
""
; %%% There was a note about "Assembler has weird restrictions",
; concerning alternative 1 when op1 == op0. True?
; For the {r,0,i} alternative (i.e., register <- register * immediate),
; there are two ways of writing the exact same machine instruction
; in assembly language. One, for example, is:
;
; imul $12, %eax
;
; while the other is:
;
; imul $12, %eax, %eax
;
; The first is simply short-hand for the latter. But, some assemblers,
; like the SCO OSR5 COFF assembler, don't handle the first form.
"@
imul{l}\\t{%2, %1, %0|%0, %1, %2}
imul{l}\\t{%2, %0|%0, %2}
imul{l}\\t{%2, %1, %0|%0, %1, %2}
imul{l}\\t{%2, %0|%0, %2}"
[(set_attr "type" "imul")
(set_attr "length" "2,3,2")])