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6l: eleminate NOP X0 instructions (from eriks 6l-nop-x0 patch)

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erik found that -N left NOPs in that 6l couldn't ignore.
add Xn to the NOP table.

bonanza; cat > fp.c
#include <u.h>
#include <libc.h>
#include <stdio.h>

void
main(void)
{
        double g;

        g = -0.;

        print("%g\n", g);
        printf("%g\n", g);
        exits("");
}
bonanza; 6c -N -FVTw fp.c
bonanza; 6l -o 6.fp fp.6
main: doasm: notfound from=6f to=34 (939)       NOP     ,X0
main: doasm: notfound from=6f to=34 (939)       NOP     ,X0
main: doasm: notfound from=6f to=34 (939)       NOP     ,X0
This commit is contained in:
cinap_lenrek 2013-02-01 00:15:02 +01:00
parent 029a8087a3
commit 0b268440b9
1 changed files with 2 additions and 0 deletions
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2
sys/src/cmd/6l/optab.c
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@ -15,8 +15,10 @@ uchar ynop[] =
Ynone, Ynone, Zpseudo,1,
Ynone, Yml, Zpseudo,1,
Ynone, Yrf, Zpseudo,1,
Ynone, Yxr, Zpseudo,1,
Yml, Ynone, Zpseudo,1,
Yrf, Ynone, Zpseudo,1,
Yxr, Ynone, Zpseudo,1,
0
};
uchar yxorb[] =