[dev.power64] liblink: fix $large(SP) for floating point load/store

Fixes test/cmplxdivide.

LGTM=minux
R=minux
CC=golang-codereviews
https://golang.org/cl/128190045

diff --git a/src/liblink/asm9.c b/src/liblink/asm9.c
index 352fba9154a09369829e9b8f0931b036fa4a3554..56582fe27d02c680d239e06cbf1ec5debae5c512 100644 (file)
--- a/src/liblink/asm9.c
+++ b/src/liblink/asm9.c
@@ -320,18 +320,18 @@ static Optab      optab[] = {
        { AFMOVD,       C_SAUTO,C_NONE, C_NONE,         C_FREG,         8, 4, REGSP },
        { AFMOVD,       C_SOREG,C_NONE, C_NONE,         C_FREG,         8, 4, REGZERO },
 
-       { AFMOVD,       C_LEXT, C_NONE, C_NONE,         C_FREG,         8, 4, REGSB },
-       { AFMOVD,       C_LAUTO,C_NONE, C_NONE,         C_FREG,         8, 4, REGSP },
-       { AFMOVD,       C_LOREG,C_NONE, C_NONE,         C_FREG,         8, 4, REGZERO },
+       { AFMOVD,       C_LEXT, C_NONE, C_NONE,         C_FREG,         36, 8, REGSB },
+       { AFMOVD,       C_LAUTO,C_NONE, C_NONE,         C_FREG,         36, 8, REGSP },
+       { AFMOVD,       C_LOREG,C_NONE, C_NONE,         C_FREG,         36, 8, REGZERO },
        { AFMOVD,       C_ADDR, C_NONE, C_NONE,         C_FREG,         75, 8, 0 },
 
        { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_SEXT,         7, 4, REGSB },
        { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_SAUTO,        7, 4, REGSP },
        { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_SOREG,        7, 4, REGZERO },
 
-       { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_LEXT,         7, 4, REGSB },
-       { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_LAUTO,        7, 4, REGSP },
-       { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_LOREG,        7, 4, REGZERO },
+       { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_LEXT,         35, 8, REGSB },
+       { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_LAUTO,        35, 8, REGSP },
+       { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_LOREG,        35, 8, REGZERO },
        { AFMOVD,       C_FREG, C_NONE, C_NONE,         C_ADDR,         74, 8, 0 },
 
        { ASYNC,                C_NONE, C_NONE, C_NONE,         C_NONE,         46, 4, 0 },
@@ -1491,6 +1491,8 @@ asmout(Link *ctxt, Prog *p, Optab *o, int32 *out)
                        r = p->to.reg;
                if(r0iszero && p->to.reg == 0)
                        ctxt->diag("literal operation on R0\n%P", p);
+               if((int16)v != v)
+                       sysfatal("mishandled instruction %P", p);
                o1 = AOP_IRR(opirr(ctxt, p->as), p->to.reg, r, v);
                break;
 
@@ -1514,8 +1516,11 @@ asmout(Link *ctxt, Prog *p, Optab *o, int32 *out)
                        if(v)
                                ctxt->diag("illegal indexed instruction\n%P", p);
                        o1 = AOP_RRR(opstorex(ctxt, p->as), p->from.reg, p->reg, r);
-               } else
+               } else {
+                       if((int16)v != v)
+                               sysfatal("mishandled instruction %P", p);       
                        o1 = AOP_IRR(opstore(ctxt, p->as), p->from.reg, r, v);
+               }
                break;
 
        case 8:         /* mov soreg, r ==> lbz/lhz/lwz o(r) */
@@ -1527,8 +1532,11 @@ asmout(Link *ctxt, Prog *p, Optab *o, int32 *out)
                        if(v)
                                ctxt->diag("illegal indexed instruction\n%P", p);
                        o1 = AOP_RRR(oploadx(ctxt, p->as), p->to.reg, p->reg, r);
-               } else
+               } else {
+                       if((int16)v != v)
+                               sysfatal("mishandled instruction %P", p);
                        o1 = AOP_IRR(opload(ctxt, p->as), p->to.reg, r, v);
+               }
                break;
 
        case 9:         /* movb soreg, r ==> lbz o(r),r2; extsb r2,r2 */