d0p1/ack
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Delete rules for sti 8 with REG IND_RC_D, with REG IND_RR_D.

Browse source 
Prefer the rule with REG FREG, by coercing IND_RC_D or IND_RR_D to
FREG.  This rule looks better to ncg.  When ncg chose between coercion
to REG IND_RC_D or coercion to REG FREG, it chose REG FREG.  It only
chose REG IND_RC_D if the stack had exact REG IND_RC_D.
This commit is contained in:
George Koehler 2017-12-12 13:36:43 -05:00
parent 11a54e0a7c
commit 5ba83100d6
1 changed files with 0 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
mach/powerpc/ncg/table
View file

@ -1174,26 +1174,6 @@ PATTERNS
gen
move %2, {IND_RC_W, %1, 0}
move %3, {IND_RC_W, %1, 4}
/*
* Next 2 patterns exist because there is no coercion
* from IND_ALL_D to REG REG.
*/
with REG IND_RC_D
kills MEMORY
uses REG={SUM_RC, %2.reg, %2.off}, REG, REG
gen
move {IND_RC_W, %a, 0}, %b
move {IND_RC_W, %a, 4}, %c
move %b, {IND_RC_W, %1, 0}
move %c, {IND_RC_W, %1, 4}
with REG IND_RR_D
kills MEMORY
uses REG={SUM_RR, %2.reg1, %2.reg2}, REG, REG
gen
move {IND_RC_W, %a, 0}, %b
move {IND_RC_W, %a, 4}, %c
move %b, {IND_RC_W, %1, 0}
move %c, {IND_RC_W, %1, 4}
pat sti /* Store arbitrary size */
leaving