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rs6000.c (function_arg_advance): SPE vararg vectors are split into two registers.

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2002-07-25  Aldy Hernandez  <aldyh@redhat.com>

	* config/rs6000/rs6000.c (function_arg_advance): SPE vararg
	vectors are split into two registers.
	(function_arg): Same.

From-SVN: r55791
This commit is contained in:
Aldy Hernandez 2002-07-27 04:12:48 +00:00 committed by Aldy Hernandez
parent c427db5dab
commit a4b0320c2d
2 changed files with 33 additions and 12 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2002-07-25 Aldy Hernandez <aldyh@redhat.com>
* config/rs6000/rs6000.c (function_arg_advance): SPE vararg
vectors are split into two registers.
(function_arg): Same.
Thu Jul 26 23:00:13 2002 J"orn Rennecke <joern.rennecke@superh.com>
* pa.md (extv): Check predicates before emitting extv_32.

39
gcc/config/rs6000/rs6000.c
View File

@ -2918,11 +2918,9 @@ function_arg_advance (cum, mode, type, named)
else
cum->words += RS6000_ARG_SIZE (mode, type);
}
else if (TARGET_SPE_ABI && TARGET_SPE && SPE_VECTOR_MODE (mode))
{
cum->words += RS6000_ARG_SIZE (mode, type);
cum->sysv_gregno++;
}
else if (TARGET_SPE_ABI && TARGET_SPE && SPE_VECTOR_MODE (mode)
&& named && cum->sysv_gregno <= GP_ARG_MAX_REG)
cum->sysv_gregno++;
else if (DEFAULT_ABI == ABI_V4)
{
if (TARGET_HARD_FLOAT && TARGET_FPRS
@ -2949,11 +2947,12 @@ function_arg_advance (cum, mode, type, named)
else
n_words = RS6000_ARG_SIZE (mode, type);
/* Long long is put in odd registers. */
/* Long long and SPE vectors are put in odd registers. */
if (n_words == 2 && (gregno & 1) == 0)
gregno += 1;
/* Long long is not split between registers and stack. */
/* Long long and SPE vectors are not split between registers
and stack. */
if (gregno + n_words - 1 > GP_ARG_MAX_REG)
{
/* Long long is aligned on the stack. */
@ -3062,9 +3061,9 @@ function_arg (cum, mode, type, named)
else
return NULL;
}
else if (TARGET_SPE_ABI && TARGET_SPE && SPE_VECTOR_MODE (mode))
else if (TARGET_SPE_ABI && TARGET_SPE && SPE_VECTOR_MODE (mode) && named)
{
if (cum->sysv_gregno - 1 <= GP_ARG_MAX_REG)
if (cum->sysv_gregno <= GP_ARG_MAX_REG)
return gen_rtx_REG (mode, cum->sysv_gregno);
else
return NULL;
@ -3091,13 +3090,29 @@ function_arg (cum, mode, type, named)
else
n_words = RS6000_ARG_SIZE (mode, type);
/* Long long is put in odd registers. */
/* Long long and SPE vectors are put in odd registers. */
if (n_words == 2 && (gregno & 1) == 0)
gregno += 1;
/* Long long is not split between registers and stack. */
/* Long long and SPE vectors are not split between registers
and stack. */
if (gregno + n_words - 1 <= GP_ARG_MAX_REG)
return gen_rtx_REG (mode, gregno);
{
/* SPE vectors in ... get split into 2 registers. */
if (TARGET_SPE && TARGET_SPE_ABI
&& SPE_VECTOR_MODE (mode) && !named)
{
rtx r1, r2;
enum machine_mode m = GET_MODE_INNER (mode);
r1 = gen_rtx_REG (m, gregno);
r1 = gen_rtx_EXPR_LIST (m, r1, const0_rtx);
r2 = gen_rtx_REG (m, gregno + 1);
r2 = gen_rtx_EXPR_LIST (m, r2, GEN_INT (4));
return gen_rtx_PARALLEL (mode, gen_rtvec (2, r1, r2));
}
return gen_rtx_REG (mode, gregno);
}
else
return NULL;
}