* sh.opt (minline-ic_invalidate): New option.

	(musermode): Adjust comment.
	* sh.c (sh_initialize_trampoline): Emit library call unless
	is set; if it is set, don't emit library call if we can use icbi
	instead.
	* sh.md (ic_invalidate_line, ic_invalidate_line_sh4a): Also use
	icbi for TARGET_SH4_300.
	* t-sh (LIB1ASMFUNCS_CACHE): Set.
	* doc/invoke.texi: Document -minline-ic_invalidate; Update
	-musermode documentation.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119314 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 10 insertions, 4 deletions

diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index bc3a7b7fbbb..aead612187d 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -9597,7 +9597,8 @@ sh_initialize_trampoline (rtx tramp, rtx fnaddr, rtx cxt)
   emit_move_insn (adjust_address (tramp_mem, SImode, 12), fnaddr);
   if (TARGET_HARVARD)
     {
-      if (TARGET_USERMODE)
+      if (!TARGET_INLINE_IC_INVALIDATE
+	  || !(TARGET_SH4A_ARCH || TARGET_SH4_300) && TARGET_USERMODE)
 	emit_library_call (function_symbol (NULL, "__ic_invalidate",
 					    FUNCTION_ORDINARY),
 			   0, VOIDmode, 1, tramp, SImode);
diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md
index ab9a3b4d606..e6d80300cdd 100644
--- a/gcc/config/sh/sh.md
+++ b/gcc/config/sh/sh.md
@@ -5153,7 +5153,7 @@ label:
       emit_insn (gen_ic_invalidate_line_compact (operands[0], operands[1]));
       DONE;
     }
-  else if (TARGET_SH4A_ARCH)
+  else if (TARGET_SH4A_ARCH || TARGET_SH4_300)
     {
       emit_insn (gen_ic_invalidate_line_sh4a (operands[0]));
       DONE;
@@ -5181,7 +5181,7 @@ label:
 (define_insn "ic_invalidate_line_sh4a"
   [(unspec_volatile [(match_operand:SI 0 "register_operand" "r")]
 		    UNSPEC_ICACHE)]
-  "TARGET_SH4A_ARCH"
+  "TARGET_SH4A_ARCH || TARGET_SH4_300"
   "ocbwb\\t@%0\;synco\;icbi\\t@%0"
   [(set_attr "length" "16")
    (set_attr "type" "cwb")])
diff --git a/gcc/config/sh/sh.opt b/gcc/config/sh/sh.opt
index 161fdd8dcaf..d03dcf2f828 100644
--- a/gcc/config/sh/sh.opt
+++ b/gcc/config/sh/sh.opt
@@ -268,6 +268,10 @@ mindexed-addressing
 Target Report Mask(ALLOW_INDEXED_ADDRESS) Condition(SUPPORT_ANY_SH5_32MEDIA)
 Enable the use of the indexed addressing mode for SHmedia32/SHcompact
 
+minline-ic_invalidate
+Target Report Var(TARGET_INLINE_IC_INVALIDATE)
+inline code to invalidate instruction cache entries after setting up nested function trampolines
+
 minvalid-symbols
 Target Report Mask(INVALID_SYMBOLS) Condition(SUPPORT_ANY_SH5)
 Assume symbols might be invalid
@@ -316,7 +320,7 @@ Cost to assume for a multiply insn
 
 musermode
 Target Report RejectNegative Mask(USERMODE)
-Generate library function call to invalidate instruction cache entries after fixing trampoline
+Don't generate privileged-mode only code; implies -mno-inline-ic_invalidate if the inline code would not work in user mode.
 
 ;; We might want to enable this by default for TARGET_HARD_SH4, because
 ;; zero-offset branches have zero latency.  Needs some benchmarking.
diff --git a/gcc/config/sh/t-sh b/gcc/config/sh/t-sh
index 56b6ba1c55a..4f9934b27cc 100644
--- a/gcc/config/sh/t-sh
+++ b/gcc/config/sh/t-sh
@@ -7,6 +7,7 @@ LIB1ASMFUNCS = _ashiftrt _ashiftrt_n _ashiftlt _lshiftrt _movmem \
   _movmem_i4 _mulsi3 _sdivsi3 _sdivsi3_i4 _udivsi3 _udivsi3_i4 _set_fpscr \
   _div_table _udiv_qrnnd_16 \
   $(LIB1ASMFUNCS_CACHE)
+LIB1ASMFUNCS_CACHE = _ic_invalidate _ic_invalidate_array
 
 # We want fine grained libraries, so use the new code to build the
 # floating point emulation libraries.