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| author | Chung-Ju Wu <jasonwucj@gmail.com> | 2018-08-12 07:38:40 +0000 |
|---|---|---|
| committer | Chung-Ju Wu <jasonwucj@gcc.gnu.org> | 2018-08-12 07:38:40 +0000 |
| commit | a49317452416282f4cb4da0149754c58d87b2241 (patch) | |
| tree | 7acf8d7580c0a7c12800740f68ef42e0a4f3cd91 /gcc/config/nds32/nds32.md | |
| parent | 39d2c7ed9f6dd2d716b046bc28524bd26b3a9d46 (diff) | |
| download | gcc-a49317452416282f4cb4da0149754c58d87b2241.tar.gz | |
[NDS32] Implement more C ISR extension.
gcc/
* config.gcc (nds32*): Add nds32_isr.h and nds32_init.inc in
extra_headers.
* common/config/nds32/nds32-common.c (nds32_handle_option): Handle
OPT_misr_secure_ case.
* config/nds32/nds32-isr.c: Implementation of backward compatibility.
* config/nds32/nds32-protos.h (nds32_isr_function_critical_p): New.
* config/nds32/nds32.c (nds32_attribute_table): Add critical and
secure attribute.
* config/nds32/nds32.h (nds32_isr_nested_type): Add NDS32_CRITICAL.
(nds32_isr_info): New field security_level.
(TARGET_ISR_VECTOR_SIZE_4_BYTE): New macro.
* config/nds32/nds32.md (return_internal): Consider critical attribute.
* config/nds32/nds32.opt (misr-secure): New option.
* config/nds32/nds32_init.inc: New file.
* config/nds32/nds32_isr.h: New file.
libgcc/
* config/nds32/t-nds32-isr: Rearrange object dependency.
* config/nds32/initfini.c: Add dwarf2 unwinding support.
* config/nds32/isr-library/adj_intr_lvl.inc: Consider new extensions
and registers usage.
* config/nds32/isr-library/excp_isr.S: Ditto.
* config/nds32/isr-library/intr_isr.S: Ditto.
* config/nds32/isr-library/reset.S: Ditto.
* config/nds32/isr-library/restore_all.inc: Ditto.
* config/nds32/isr-library/restore_mac_regs.inc: Ditto.
* config/nds32/isr-library/restore_partial.inc: Ditto.
* config/nds32/isr-library/restore_usr_regs.inc: Ditto.
* config/nds32/isr-library/save_all.inc: Ditto.
* config/nds32/isr-library/save_mac_regs.inc: Ditto.
* config/nds32/isr-library/save_partial.inc: Ditto.
* config/nds32/isr-library/save_usr_regs.inc: Ditto.
* config/nds32/isr-library/vec_vid*.S: Consider 4-byte vector size.
From-SVN: r263493
Diffstat (limited to 'gcc/config/nds32/nds32.md')
| -rw-r--r-- | gcc/config/nds32/nds32.md | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/gcc/config/nds32/nds32.md b/gcc/config/nds32/nds32.md index 92e90dda1af..f5349d7cc76 100644 --- a/gcc/config/nds32/nds32.md +++ b/gcc/config/nds32/nds32.md @@ -1993,6 +1993,9 @@ [(simple_return)] "" { + if (nds32_isr_function_critical_p (current_function_decl)) + return "iret"; + if (TARGET_16_BIT) return "ret5"; else @@ -2001,9 +2004,11 @@ [(set_attr "type" "branch") (set_attr "enabled" "yes") (set (attr "length") - (if_then_else (match_test "TARGET_16_BIT") - (const_int 2) - (const_int 4)))]) + (if_then_else (match_test "nds32_isr_function_critical_p (current_function_decl)") + (const_int 4) + (if_then_else (match_test "TARGET_16_BIT") + (const_int 2) + (const_int 4))))]) ;; ---------------------------------------------------------------------------- |