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pru: Implement c and n asm operand modifiers

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Fix c-c++-common/toplevel-asm-1.c failure for PRU backend, caused by
missing implementation of the "c" asm operand modifier.

gcc/ChangeLog:

	* config/pru/pru.cc (pru_print_operand): Implement c and n
	inline assembly operand modifiers.

gcc/testsuite/ChangeLog:

	* gcc.target/pru/asm-op-modifier.c: New test.

Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
This commit is contained in:
Dimitar Dimitrov 2024-12-08 11:37:06 +02:00
parent e119083466
commit 89d19ab91a
No known key found for this signature in database
GPG key ID: 963DD134E821F15D
2 changed files with 43 additions and 1 deletions
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12
gcc/config/pru/pru.cc
View file

@ -1858,12 +1858,22 @@ pru_print_operand (FILE *file, rtx op, int letter)
fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (op) & 0xff);
return;
}
else if (letter == 'c')
{
fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (op));
return;
}
else if (letter == 'n')
{
fprintf (file, HOST_WIDE_INT_PRINT_DEC, -INTVAL (op));
return;
}
/* Else, fall through. */
case CONST:
case LABEL_REF:
case SYMBOL_REF:
if (letter == 0)
if (letter == 0 || letter == 'c')
{
output_addr_const (file, op);
return;

32
gcc/testsuite/gcc.target/pru/asm-op-modifier.c Normal file
View file

@ -0,0 +1,32 @@
/* Test ASM operand modifiers. */
/* { dg-do compile } */
/* { dg-options "-O1" } */
struct S {
char b;
int a;
short c;
};
void
test_const_int (void)
{
/* { dg-final { scan-assembler "# printing 7 and -5" } } */
asm volatile ("# printing %c0 and %n1"
: :
"i" (sizeof(struct S)),
"i" (__builtin_offsetof (struct S, c)));
}
extern int g;
void
test_sym (void)
{
/* { dg-final { scan-assembler "# outputting g and test_sym" } } */
asm volatile ("# outputting %c0 and %c1"
: :
"i" (&g),
"i" (&test_sym));
}