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RISC-V: Put jump table in text for large code model

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Large code model assume the data or rodata may put far away from
text section.  So we need to put jump table in text section for
large code model.

gcc/ChangeLog:

	* config/riscv/riscv.h (JUMP_TABLES_IN_TEXT_SECTION): Check if
	large code model.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/jump-table-large-code-model.c: New test.
This commit is contained in:
Kito Cheng 2025-04-14 16:03:07 +08:00
parent 45a708d7bf
commit 1d9e02bb7e
2 changed files with 25 additions and 1 deletions
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2
gcc/config/riscv/riscv.h
View file

@ -888,7 +888,7 @@ extern enum riscv_cc get_riscv_cc (const rtx use);
#define ASM_OUTPUT_OPCODE(STREAM, PTR) \
(PTR) = riscv_asm_output_opcode(STREAM, PTR)
#define JUMP_TABLES_IN_TEXT_SECTION 0
#define JUMP_TABLES_IN_TEXT_SECTION (riscv_cmodel == CM_LARGE)
#define CASE_VECTOR_MODE SImode
#define CASE_VECTOR_PC_RELATIVE (riscv_cmodel != CM_MEDLOW)

24
gcc/testsuite/gcc.target/riscv/jump-table-large-code-model.c Normal file
View file

@ -0,0 +1,24 @@
/* { dg-do compile } */
/* { dg-options "-march=rv64gc -mabi=lp64 -mcmodel=large" } */
int foo(int x, int y)
{
switch(x){
case 0:
return 123 + y;
case 1:
return 456 + y;
case 2:
return 789 - y;
case 3:
return 12 * y;
case 4:
return 13 % y;
case 5:
return 11 *y;
}
return 0;
}
/* { dg-final { scan-assembler-not "\.section \.rodata" } } */