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sim/common: wire up new unordered comparisons 

Define and wire up unordered floating point comparison operations for cgen
targets.  This patch depends on my posted cgen patches[0].

[0] https://www.sourceware.org/ml/cgen/2019-q2/msg00013.html

sim/common/ChangeLog:

yyyy-mm-dd  Stafford Horne  <shorne@gmail.com>

	* cgen-accfp.c (unorderedsf, unordereddf): New functions.
	(cgen_init_accurate_fpu): Wire up unorderedsf and unordereddf.
	* cgen-fpu.h (cgen_fp_ops): Define fields unorderedsf and unordereddf.
This commit is contained in:
Stafford Horne 2019-06-13 21:27:10 +09:00
parent 688cea90bc
commit f1cc84f594
3 changed files with 33 additions and 0 deletions
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6
sim/common/ChangeLog
View File

@ -1,3 +1,9 @@
2019-06-13 Stafford Horne <shorne@gmail.com>
* cgen-accfp.c (unorderedsf, unordereddf): New functions.
(cgen_init_accurate_fpu): Wire up unorderedsf and unordereddf.
* cgen-fpu.h (cgen_fp_ops): Define fields unorderedsf and unordereddf.
2019-06-13 Stafford Horne <shorne@gmail.com>
* cgen-accfp.c (floatdidf, fixdfdi): New functions.

25
sim/common/cgen-accfp.c
View File

@ -303,6 +303,18 @@ gesf (CGEN_FPU* fpu, SF x, SF y)
return sim_fpu_is_ge (&op1, &op2);
}
static int
unorderedsf (CGEN_FPU* fpu, SF x, SF y)
{
sim_fpu op1;
sim_fpu op2;
sim_fpu_32to (&op1, x);
sim_fpu_32to (&op2, y);
return sim_fpu_is_nan (&op1) || sim_fpu_is_nan (&op2);
}
static DF
fextsfdf (CGEN_FPU* fpu, int how UNUSED, SF x)
{
@ -703,6 +715,17 @@ gedf (CGEN_FPU* fpu, DF x, DF y)
sim_fpu_64to (&op2, y);
return sim_fpu_is_ge (&op1, &op2);
}
static int
unordereddf (CGEN_FPU* fpu, DF x, DF y)
{
sim_fpu op1;
sim_fpu op2;
sim_fpu_64to (&op1, x);
sim_fpu_64to (&op2, y);
return sim_fpu_is_nan (&op1) || sim_fpu_is_nan (&op2);
}
/* Initialize FP_OPS to use accurate library. */
@ -738,6 +761,7 @@ cgen_init_accurate_fpu (SIM_CPU* cpu, CGEN_FPU* fpu, CGEN_FPU_ERROR_FN* error)
o->lesf = lesf;
o->gtsf = gtsf;
o->gesf = gesf;
o->unorderedsf = unorderedsf;
o->adddf = adddf;
o->subdf = subdf;
@ -757,6 +781,7 @@ cgen_init_accurate_fpu (SIM_CPU* cpu, CGEN_FPU* fpu, CGEN_FPU_ERROR_FN* error)
o->ledf = ledf;
o->gtdf = gtdf;
o->gedf = gedf;
o->unordereddf = unordereddf;
o->fextsfdf = fextsfdf;
o->ftruncdfsf = ftruncdfsf;
o->floatsisf = floatsisf;

2
sim/common/cgen-fpu.h
View File

@ -87,6 +87,7 @@ struct cgen_fp_ops {
int (*lesf) (CGEN_FPU*, SF, SF);
int (*gtsf) (CGEN_FPU*, SF, SF);
int (*gesf) (CGEN_FPU*, SF, SF);
int (*unorderedsf) (CGEN_FPU*, SF, SF);
/* basic DF ops */
@ -112,6 +113,7 @@ struct cgen_fp_ops {
int (*ledf) (CGEN_FPU*, DF, DF);
int (*gtdf) (CGEN_FPU*, DF, DF);
int (*gedf) (CGEN_FPU*, DF, DF);
int (*unordereddf) (CGEN_FPU*, DF, DF);
/* SF/DF conversion ops */