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Remove the "invalid" stacking rule.

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When ncg fell back on this rule, it did emit the string "invalid" in
the assembly code and caused a syntax error in the assembler.

Adjust the stacking rules so we can stack LOCAL, CONST, and LABEL
without falling back on the "invalid" rule, and so we can stack them
when we have no free register except the scratch register.
This commit is contained in:
George Koehler 2016-09-27 16:46:11 -04:00
parent 865ef629dd
commit 1e3dde915a
1 changed files with 14 additions and 17 deletions
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21
mach/powerpc/ncg/table
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@ -233,7 +233,6 @@ TOKENS
SETS SETS
TOKEN = LABEL + CONST + LOCAL.
GPRI = GPR + GPRE. GPRI = GPR + GPRE.
SUM_ALL = SUM_RC + SUM_RR. SUM_ALL = SUM_RC + SUM_RR.
@ -349,7 +348,6 @@ INSTRUCTIONS
gpr_wo_gprindirect GPRI:wo, GPRINDIRECT:ro. gpr_wo_gprindirect GPRI:wo, GPRINDIRECT:ro.
gpr_wo_gpr_gpr GPRI:wo, GPRI:ro, GPRI:ro. gpr_wo_gpr_gpr GPRI:wo, GPRI:ro, GPRI:ro.
invalid "invalid".
comment "!" LABEL+LABELI:ro. comment "!" LABEL+LABELI:ro.
@ -754,24 +752,27 @@ TESTS
STACKINGRULES STACKINGRULES
from LOCAL to STACK
gen
COMMENT("stack LOCAL")
stwu {GPRE, regvar(%1.off)}, {GPRINDIRECT, SP, 0-4}
from GPR to STACK from GPR to STACK
gen gen
COMMENT("stack GPR") COMMENT("stack GPR")
stwu %1, {GPRINDIRECT, SP, 0-4} stwu %1, {GPRINDIRECT, SP, 0-4}
from CONST to STACK from CONST to STACK
uses REG
gen gen
COMMENT("stack CONST") COMMENT("stack CONST")
move %1, %a move %1, SCRATCH
stwu %a, {GPRINDIRECT, SP, 0-4} stwu SCRATCH, {GPRINDIRECT, SP, 0-4}
from LABEL to STACK from LABEL to STACK
uses REG
gen gen
COMMENT("stack LABEL") COMMENT("stack LABEL")
move %1, {GPRE, %a} move %1, SCRATCH
stwu %a, {GPRINDIRECT, SP, 0-4} stwu SCRATCH, {GPRINDIRECT, SP, 0-4}
from SEX_B to STACK from SEX_B to STACK
gen gen
@ -810,10 +811,6 @@ STACKINGRULES
COMMENT("stack FSREG") COMMENT("stack FSREG")
stfsu %1, {GPRINDIRECT, SP, 0-4} stfsu %1, {GPRINDIRECT, SP, 0-4}
from TOKEN to STACK
gen
invalid.
COERCIONS COERCIONS