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Fix bytecode dump for certain number constants.

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This commit is contained in:
Mike Pall 2012-02-04 00:32:45 +01:00
parent d72d758a11
commit 8e524d437e
1 changed files with 10 additions and 4 deletions
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14
src/lj_bcwrite.c
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@ -219,13 +219,19 @@ static void bcwrite_knum(BCWriteCtx *ctx, GCproto *pt)
k = lj_num2int(num);
if (num == (lua_Number)k) { /* -0 is never a constant. */
save_int:
bcwrite_uleb128(ctx, 2*(uint32_t)k);
if (k < 0) ctx->sb.buf[ctx->sb.n-1] |= 0x10;
bcwrite_uleb128(ctx, 2*(uint32_t)k | ((uint32_t)k & 0x80000000u));
if (k < 0) {
char *p = &ctx->sb.buf[ctx->sb.n-1];
*p = (*p & 7) | ((k>>27) & 0x18);
}
continue;
}
}
bcwrite_uleb128(ctx, 1+2*o->u32.lo);
if (o->u32.lo >= 0x80000000u) ctx->sb.buf[ctx->sb.n-1] |= 0x10;
bcwrite_uleb128(ctx, 1+(2*o->u32.lo | (o->u32.lo & 0x80000000u)));
if (o->u32.lo >= 0x80000000u) {
char *p = &ctx->sb.buf[ctx->sb.n-1];
*p = (*p & 7) | ((o->u32.lo>>27) & 0x18);
}
bcwrite_uleb128(ctx, o->u32.hi);
}
}