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Re-enable trace stitching.

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Thanks to Vyacheslav Egorov.
This commit is contained in:
Mike Pall
2015-08-29 23:22:29 +02:00
parent ad29314c2c
commit a3a6866d4c
13 changed files with 60 additions and 84 deletions
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10
src/vm_mips.dasc
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@@ -2015,7 +2015,7 @@ static void build_subroutines(BuildCtx *ctx)
|.if JIT
| // RA = resultptr, RB = meta base
| lw INS, -4(PC)
| lw TMP3, -24+LO(RB) // Save previous trace number.
| lw TMP2, -24+LO(RB) // Save previous trace.
| decode_RA8a RC, INS
| addiu AT, MULTRES, -8
| decode_RA8b RC
@@ -2034,17 +2034,13 @@ static void build_subroutines(BuildCtx *ctx)
| decode_RA8b RA
| decode_RB8b RB
| addu RA, RA, RB
| lw TMP1, DISPATCH_J(trace)(DISPATCH)
| addu RA, BASE, RA
|3:
| sltu AT, RC, RA
| bnez AT, >9 // More results wanted?
|. sll TMP2, TMP3, 2
|. nop
|
| addu TMP2, TMP1, TMP2
| lw TRACE:TMP2, 0(TMP2)
| beqz TRACE:TMP2, ->cont_nop
|. nop
| lhu TMP3, TRACE:TMP2->traceno
| lhu RD, TRACE:TMP2->link
| beq RD, TMP3, ->cont_nop // Blacklisted.
|. load_got lj_dispatch_stitch