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- From 2b4b5775554c91a63ccae4ee566db696b633652e Mon Sep 17 00:00:00 2001
- From: jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4>
- Date: Wed, 10 Jun 2015 15:07:40 +0000
- Subject: [PATCH] xtensa: implement trap pattern
- 2015-06-10 Max Filippov <jcmvbkbc@gmail.com>
- gcc/
- * config/xtensa/xtensa.h (TARGET_DEBUG): New definition.
- * config/xtensa/xtensa.md (define_attr "type"): New type "trap".
- (define_insn "trap"): New definition.
- Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
- git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@224330 138bc75d-0d04-0410-961f-82ee72b054a4
- ---
- gcc/config/xtensa/xtensa.h | 1 +
- gcc/config/xtensa/xtensa.md | 15 ++++++++++++++-
- 2 files changed, 15 insertions(+), 1 deletion(-)
- diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
- index 615f741..fb8702c 100644
- --- a/gcc/config/xtensa/xtensa.h
- +++ b/gcc/config/xtensa/xtensa.h
- @@ -67,6 +67,7 @@ extern unsigned xtensa_current_frame_size;
- #define TARGET_THREADPTR XCHAL_HAVE_THREADPTR
- #define TARGET_LOOPS XCHAL_HAVE_LOOPS
- #define TARGET_WINDOWED_ABI (XSHAL_ABI == XTHAL_ABI_WINDOWED)
- +#define TARGET_DEBUG XCHAL_HAVE_DEBUG
-
- #define TARGET_DEFAULT \
- ((XCHAL_HAVE_L32R ? 0 : MASK_CONST16) | \
- diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md
- index 6d84384..a577aa3 100644
- --- a/gcc/config/xtensa/xtensa.md
- +++ b/gcc/config/xtensa/xtensa.md
- @@ -86,7 +86,7 @@
- ;; Attributes.
-
- (define_attr "type"
- - "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry"
- + "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry,trap"
- (const_string "unknown"))
-
- (define_attr "mode"
- @@ -1764,6 +1764,19 @@
- [(set_attr "length" "0")
- (set_attr "type" "nop")])
-
- +(define_insn "trap"
- + [(trap_if (const_int 1) (const_int 0))]
- + ""
- +{
- + if (TARGET_DEBUG)
- + return "break\t1, 15";
- + else
- + return (TARGET_DENSITY ? "ill.n" : "ill");
- +}
- + [(set_attr "type" "trap")
- + (set_attr "mode" "none")
- + (set_attr "length" "3")])
- +
- ;; Setting up a frame pointer is tricky for Xtensa because GCC doesn't
- ;; know if a frame pointer is required until the reload pass, and
- ;; because there may be an incoming argument value in the hard frame
- --
- 2.1.4
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