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* config/alpha/alpha.c (some_small_symbolic_mem_operand) Use

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for_each_rtx instead of assuming we're already looking at the MEM.
        (split_small_symbolic_mem_operand): Likewise.
        * config/alpha/alpha.h (PREDICATE_CODES): Update.
        * config/alpha/alpha.md (small symbolic memory splitters): Update.

	* gcc.dg/20020122-4.c: New.

From-SVN: r49111
This commit is contained in:
Richard Henderson 2002-01-22 15:23:46 -08:00 committed by Richard Henderson
parent 2e27193212
commit 1e7e480e5c
6 changed files with 65 additions and 42 deletions
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10
gcc/ChangeLog
View File

@ -1,4 +1,12 @@
<<<<<<< ChangeLog
2002-01-22 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.c (some_small_symbolic_mem_operand) Use
for_each_rtx instead of assuming we're already looking at the MEM.
(split_small_symbolic_mem_operand): Likewise.
* config/alpha/alpha.h (PREDICATE_CODES): Update.
* config/alpha/alpha.md (small symbolic memory splitters): Update.
2002-01-22 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.md (divmodsi_internal_er): Generate lituse
sequence number for the literal.

68
gcc/config/alpha/alpha.c
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@ -116,6 +116,10 @@ int alpha_this_gpdisp_sequence_number;
/* Declarations of static functions. */
static bool decl_in_text_section
PARAMS ((tree));
static int some_small_symbolic_mem_operand_1
PARAMS ((rtx *, void *));
static int split_small_symbolic_mem_operand_1
PARAMS ((rtx *, void *));
static bool local_symbol_p
PARAMS ((rtx));
static void alpha_set_memflags_1
@ -1874,51 +1878,57 @@ some_small_symbolic_mem_operand (x, mode)
rtx x;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
/* Get rid of SIGN_EXTEND, etc. */
while (GET_RTX_CLASS (GET_CODE (x)) == '1')
x = XEXP (x, 0);
return for_each_rtx (&x, some_small_symbolic_mem_operand_1, NULL);
}
static int
some_small_symbolic_mem_operand_1 (px, data)
rtx *px;
void *data ATTRIBUTE_UNUSED;
{
rtx x = *px;
if (GET_CODE (x) != MEM)
return 0;
x = XEXP (x, 0);
/* If this is an ldq_u type address, discard the outer AND. */
if (GET_CODE (x) == AND && GET_MODE (x) == DImode
&& GET_CODE (XEXP (x, 1)) == CONST_INT
&& INTVAL (XEXP (x, 1)) == -8)
if (GET_CODE (x) == AND)
x = XEXP (x, 0);
return small_symbolic_operand (x, Pmode);
return small_symbolic_operand (x, Pmode) ? 1 : -1;
}
rtx
split_small_symbolic_mem_operand (x)
rtx x;
{
rtx *p;
x = copy_rtx (x);
for_each_rtx (&x, split_small_symbolic_mem_operand_1, NULL);
return x;
}
if (GET_CODE (x) == MEM)
static int
split_small_symbolic_mem_operand_1 (px, data)
rtx *px;
void *data ATTRIBUTE_UNUSED;
{
rtx x = *px;
if (GET_CODE (x) != MEM)
return 0;
px = &XEXP (x, 0), x = *px;
if (GET_CODE (x) == AND)
px = &XEXP (x, 0), x = *px;
if (small_symbolic_operand (x, Pmode))
{
rtx tmp = XEXP (x, 0);
if (GET_CODE (tmp) == AND && GET_MODE (tmp) == DImode
&& GET_CODE (XEXP (tmp, 1)) == CONST_INT
&& INTVAL (XEXP (tmp, 1)) == -8)
{
tmp = gen_rtx_LO_SUM (DImode, pic_offset_table_rtx, XEXP (tmp, 0));
tmp = gen_rtx_AND (DImode, tmp, GEN_INT (-8));
}
else
tmp = gen_rtx_LO_SUM (DImode, pic_offset_table_rtx, tmp);
return replace_equiv_address (x, tmp);
x = gen_rtx_LO_SUM (Pmode, pic_offset_table_rtx, x);
*px = x;
}
x = copy_rtx (x);
p = &x;
while (GET_RTX_CLASS (GET_CODE (*p)) == '1')
p = &XEXP (*p, 0);
*p = split_small_symbolic_mem_operand (*p);
return x;
return -1;
}
/* Try a machine-dependent way of reloading an illegitimate address

3
gcc/config/alpha/alpha.h
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@ -2079,8 +2079,7 @@ do { \
{"reg_no_subreg_operand", {REG}}, \
{"addition_operation", {PLUS}}, \
{"symbolic_operand", {SYMBOL_REF, LABEL_REF, CONST}}, \
{"some_small_symbolic_mem_operand", {MEM, SIGN_EXTEND, ZERO_EXTEND, \
FLOAT_EXTEND}},
{"some_small_symbolic_mem_operand", {SET, PARALLEL}},
/* Define the `__builtin_va_list' type for the ABI. */
#define BUILD_VA_LIST_TYPE(VALIST) \

12
gcc/config/alpha/alpha.md
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@ -5501,19 +5501,11 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi"
"operands[2] = pic_offset_table_rtx;")
(define_split
[(set (match_operand 0 "some_small_symbolic_mem_operand" "")
(match_operand 1 "" ""))]
[(match_operand 0 "some_small_symbolic_mem_operand" "")]
"TARGET_EXPLICIT_RELOCS && reload_completed"
[(set (match_dup 0) (match_dup 1))]
[(match_dup 0)]
"operands[0] = split_small_symbolic_mem_operand (operands[0]);")
(define_split
[(set (match_operand 0 "" "")
(match_operand 1 "some_small_symbolic_mem_operand" ""))]
"TARGET_EXPLICIT_RELOCS && reload_completed"
[(set (match_dup 0) (match_dup 1))]
"operands[1] = split_small_symbolic_mem_operand (operands[1]);")
(define_insn "movdi_er_high_g"
[(set (match_operand:DI 0 "register_operand" "=r")
(unspec:DI [(match_operand:DI 1 "register_operand" "r")

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2002-01-22 Richard Henderson <rth@redhat.com>
* gcc.dg/20020122-4.c: New.
2002-01-22 H.J. Lu <hjl@gnu.org>
* g++.dg/special/ecos.exp: Append .exe instead of a.out as the

10
gcc/testsuite/gcc.dg/20020122-4.c Normal file
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@ -0,0 +1,10 @@
/* Alpha -msmall-data didn't transform (mem (symbol_ref)) to
(mem (lo_sum pic (symbol_ref))) within an asm at the right time. */
/* { dg-do compile } */
/* { dg-options "-O2 -fpic" } */
void foo()
{
static int test;
asm volatile ("" : "=m"(test) : "m"(test));
}