diff options
Diffstat (limited to 'src/cmd/internal')
| -rw-r--r-- | src/cmd/internal/obj/ppc64/asm9.go | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/cmd/internal/obj/ppc64/asm9.go b/src/cmd/internal/obj/ppc64/asm9.go index 1a884dea7b..7399106c74 100644 --- a/src/cmd/internal/obj/ppc64/asm9.go +++ b/src/cmd/internal/obj/ppc64/asm9.go @@ -282,6 +282,7 @@ var optabBase = []Optab{ {as: ASYSCALL, a1: C_U15CON, type_: 77, size: 12}, {as: ABEQ, a6: C_BRA, type_: 16, size: 4}, {as: ABEQ, a1: C_CREG, a6: C_BRA, type_: 16, size: 4}, + {as: ABEQ, a1: C_CREG, a6: C_LR, type_: 17, size: 4}, {as: ABR, a6: C_BRA, type_: 11, size: 4}, // b label {as: ABR, a6: C_BRAPIC, type_: 11, size: 8}, // b label; nop {as: ABR, a6: C_LR, type_: 18, size: 4}, // blr @@ -2819,6 +2820,50 @@ func asmout(c *ctxt9, p *obj.Prog, o *Optab, out *[5]uint32) { } o1 = OP_BC(c.opirr(p.As), uint32(a), uint32(r), uint32(v), 0) + case 17: + var bo int32 + bi := int(p.Reg) + + if p.From.Reg == REG_CR { + c.ctxt.Diag("unrecognized register: expected CR0-CR7\n") + } + bi = int(p.From.Reg&0x7) * 4 + + bo = BO_BCR + + switch p.As { + case ABLT: + bi += BI_LT + case ABGT: + bi += BI_GT + case ABEQ: + bi += BI_EQ + case ABNE: + bo = BO_NOTBCR + bi += BI_EQ + case ABLE: + bo = BO_NOTBCR + bi += BI_GT + case ABGE: + bo = BO_NOTBCR + bi += BI_LT + case ABVS: + bi += BI_FU + case ABVC: + bo = BO_NOTBCR + bi += BI_FU + default: + c.ctxt.Diag("unexpected instruction: expecting BGT, BEQ, BNE, BLE, BGE, BVS, BVC \n%v", p) + + } + if oclass(&p.To) == C_LR { + o1 = OPVCC(19, 16, 0, 0) + } else { + c.ctxt.Diag("bad optab entry (17): %d\n%v", p.To.Class, p) + } + + o1 = OP_BCR(o1, uint32(bo), uint32(bi)) + case 18: /* br/bl (lr/ctr); bc/bcl bo,bi,(lr/ctr) */ var v int32 var bh uint32 = 0 |