From 1d9e02bb7e0af4f3d3eaaa1a0f4961970aba5560 Mon Sep 17 00:00:00 2001
From: Kito Cheng <kito.cheng@sifive.com>
Date: Mon, 14 Apr 2025 16:03:07 +0800
Subject: [PATCH] RISC-V: Put jump table in text for large code model

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.
---
 gcc/config/riscv/riscv.h                      |  2 +-
 .../riscv/jump-table-large-code-model.c       | 24 +++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.target/riscv/jump-table-large-code-model.c

diff --git a/gcc/config/riscv/riscv.h b/gcc/config/riscv/riscv.h
index 2bcabd03517..2759a4cb1c9 100644
--- a/gcc/config/riscv/riscv.h
+++ b/gcc/config/riscv/riscv.h
@@ -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)
 
diff --git a/gcc/testsuite/gcc.target/riscv/jump-table-large-code-model.c b/gcc/testsuite/gcc.target/riscv/jump-table-large-code-model.c
new file mode 100644
index 00000000000..1ee7f6c07d3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/jump-table-large-code-model.c
@@ -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" } } */