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58 lines
1.9 KiB
Diff
58 lines
1.9 KiB
Diff
From d462e776df56a72f68545054f6d722bf447f0519 Mon Sep 17 00:00:00 2001
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From: Max Filippov <jcmvbkbc@gmail.com>
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Date: Mon, 8 Jun 2015 22:29:11 +0300
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Subject: [PATCH] xtensa: implement trap pattern
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gcc/
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* config/xtensa/xtensa.h (TARGET_DEBUG): New definition.
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* config/xtensa/xtensa.md (define_attr "type"): New type "trap".
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(define_insn "trap"): New definition.
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Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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---
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gcc/config/xtensa/xtensa.h | 1 +
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gcc/config/xtensa/xtensa.md | 15 ++++++++++++++-
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2 files changed, 15 insertions(+), 1 deletion(-)
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--- a/gcc/config/xtensa/xtensa.h
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+++ b/gcc/config/xtensa/xtensa.h
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@@ -67,6 +67,7 @@
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#define TARGET_THREADPTR XCHAL_HAVE_THREADPTR
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#define TARGET_LOOPS XCHAL_HAVE_LOOPS
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#define TARGET_WINDOWED_ABI (XSHAL_ABI == XTHAL_ABI_WINDOWED)
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+#define TARGET_DEBUG XCHAL_HAVE_DEBUG
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#define TARGET_DEFAULT \
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((XCHAL_HAVE_L32R ? 0 : MASK_CONST16) | \
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--- a/gcc/config/xtensa/xtensa.md
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+++ b/gcc/config/xtensa/xtensa.md
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@@ -86,7 +86,7 @@
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;; Attributes.
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(define_attr "type"
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- "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry"
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+ "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry,trap"
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(const_string "unknown"))
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(define_attr "mode"
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@@ -1764,6 +1764,19 @@
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[(set_attr "length" "0")
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(set_attr "type" "nop")])
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+(define_insn "trap"
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+ [(trap_if (const_int 1) (const_int 0))]
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+ ""
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+{
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+ if (TARGET_DEBUG)
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+ return "break\t1, 15";
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+ else
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+ return (TARGET_DENSITY ? "ill.n" : "ill");
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+}
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+ [(set_attr "type" "trap")
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+ (set_attr "mode" "none")
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+ (set_attr "length" "3")])
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+
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;; Setting up a frame pointer is tricky for Xtensa because GCC doesn't
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;; know if a frame pointer is required until the reload pass, and
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;; because there may be an incoming argument value in the hard frame
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