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pa.c (hppa_rtx_costs): Update costs for large integer modes. 

* config/pa/pa.c (hppa_rtx_costs): Update costs for large integer modes.

From-SVN: r191102
This commit is contained in:
John David Anglin 2012-09-08 22:35:54 +00:00 committed by John David Anglin
parent 4e5315e5cf
commit 259febfe6c
2 changed files with 36 additions and 8 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2012-09-08 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* config/pa/pa.c (hppa_rtx_costs): Update costs for large integer modes.
2012-09-08 Andi Kleen <ak@linux.intel.com> 2012-09-08 Andi Kleen <ak@linux.intel.com>
* gcc/lto/lto.c (do_whole_program_analysis): * gcc/lto/lto.c (do_whole_program_analysis):

40
gcc/config/pa/pa.c
View File

@ -1422,6 +1422,8 @@ static bool
hppa_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED, hppa_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED,
int *total, bool speed ATTRIBUTE_UNUSED) int *total, bool speed ATTRIBUTE_UNUSED)
{ {
int factor;
switch (code) switch (code)
{ {
case CONST_INT: case CONST_INT:
@ -1453,11 +1455,20 @@ hppa_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED,
case MULT: case MULT:
if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT) if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT)
*total = COSTS_N_INSNS (3); {
else if (TARGET_PA_11 && !TARGET_DISABLE_FPREGS && !TARGET_SOFT_FLOAT) *total = COSTS_N_INSNS (3);
*total = COSTS_N_INSNS (8); return true;
}
/* A mode size N times larger than SImode needs O(N*N) more insns. */
factor = GET_MODE_SIZE (GET_MODE (x)) / 4;
if (factor == 0)
factor = 1;
if (TARGET_PA_11 && !TARGET_DISABLE_FPREGS && !TARGET_SOFT_FLOAT)
*total = factor * factor * COSTS_N_INSNS (8);
else else
*total = COSTS_N_INSNS (20); *total = factor * factor * COSTS_N_INSNS (20);
return true; return true;
case DIV: case DIV:
@ -1471,15 +1482,28 @@ hppa_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED,
case UDIV: case UDIV:
case MOD: case MOD:
case UMOD: case UMOD:
*total = COSTS_N_INSNS (60); /* A mode size N times larger than SImode needs O(N*N) more insns. */
factor = GET_MODE_SIZE (GET_MODE (x)) / 4;
if (factor == 0)
factor = 1;
*total = factor * factor * COSTS_N_INSNS (60);
return true; return true;
case PLUS: /* this includes shNadd insns */ case PLUS: /* this includes shNadd insns */
case MINUS: case MINUS:
if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT) if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT)
*total = COSTS_N_INSNS (3); {
else *total = COSTS_N_INSNS (3);
*total = COSTS_N_INSNS (1); return true;
}
/* A size N times larger than UNITS_PER_WORD needs N times as
many insns, taking N times as long. */
factor = GET_MODE_SIZE (GET_MODE (x)) / UNITS_PER_WORD;
if (factor == 0)
factor = 1;
*total = factor * COSTS_N_INSNS (1);
return true; return true;
case ASHIFT: case ASHIFT: