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(rotate_regs): Load up "pr" with first value. Preserve p63 across rotation.

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(save_pr): New function.

(Logical change 1.292)
This commit is contained in:
hp.com!davidm 2005-05-17 13:24:49 +00:00
parent 8462f1f87d
commit 05feedabea
1 changed files with 36 additions and 1 deletions
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37
tests/ia64-test-nat-asm.S
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@ -442,13 +442,24 @@ rotate_regs:
.spillreg r4, loc4 .spillreg r4, loc4
mov loc4 = r4 mov loc4 = r4
ld8 r2 = [in1], 8;;
mov pr = r2, -1
ld8 r2 = [in1], 8;; ld8 r2 = [in1], 8;;
mov r8 = in0 mov r8 = in0
mov r9 = in1 mov r9 = in1
and r2 = 127, r2;; and r2 = 127, r2;;
mov ar.ec = 0 mov ar.ec = 0
mov ar.lc = r2;; mov ar.lc = r2;;
1: br.ctop.dptk.few 1b;;
// use p6 to preserve p63 as it gets rotated into p16:
(p16) cmp.eq.unc p6,p0 = r0,r0;;
1:
(p6) cmp.eq.unc p16,p0 = r0,r0
(p63) cmp.eq.unc p6,p0 = r0,r0
br.ctop.dptk.few 1b;;
(p6) cmp.eq.unc p63,p0 = r0,r0
CALL_NEXT_PTR(r4, r8, r9) CALL_NEXT_PTR(r4, r8, r9)
@ -462,3 +473,27 @@ rotate_regs:
br.ret.sptk.many rp br.ret.sptk.many rp
.endp rotate_regs .endp rotate_regs
.global save_pr
.proc save_pr
save_pr:
.prologue
.regstk 2, 4, 2, 0
.save ar.pfs, loc0
alloc loc0 = ar.pfs, 2, 4, 2, 0
.save rp, loc1
mov loc1 = rp
.save pr, loc2
mov loc2 = pr
ld8 r2 = [in1], 8;;
mov pr = r2, -1
CALL_NEXT(loc3)
mov ar.pfs = loc0
mov rp = loc1
mov pr = loc2, -1
br.ret.sptk.many rp
.endp save_pr