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Fix WAW dependency violation on r17 (line 198) that only exists for

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the SMP case. While on the subject, remove unnecessary stops. I don't
know if this resolves the memory corruption I'm seeing, but it does
have the potential. We'll see...
This commit is contained in:
Marcel Moolenaar 2002-04-21 22:43:50 +00:00
parent 0f9d8c9b27
commit 7ac993bf17
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=95231
1 changed files with 3 additions and 2 deletions
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5
sys/ia64/ia64/swtch.s
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@ -195,6 +195,7 @@ ENTRY(cpu_switch, 0)
mov ar.rsc=3 // turn RSE back on
#ifdef SMP
;;
add r17 = PC_CPUID, r13
movl r16 = smp_active
;;
@ -223,15 +224,15 @@ ENTRY(cpu_switch, 0)
3:
alloc r15=ar.pfs,0,0,2,0 // create temporary output frame
mov r4=ret0 // save from call
#ifdef SMP
;;
add r14=PC_CURTHREAD,r13
;;
ld8 out0=[r14]
mov out1=1
br.call.sptk.few rp=ia64_fpstate_save // clear fpcurthread
#endif
;;
add r14=PC_CURTHREAD,r13 ;;
st8 [r14]=r4 // set r13->pc_curthread