From: rth Date: Wed, 7 Mar 2012 16:23:17 +0000 (+0000) Subject: m68k: Limit TAS to 68000 and CF ISA_B. X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=09b261578fbb8fece1971913fb94367495762f0d m68k: Limit TAS to 68000 and CF ISA_B. * config/m68k/m68k.h (ISA_HAS_TAS): New. * config/m68k/sync.md (atomic_test_and_set): Use it. (atomic_test_and_set_1): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@185063 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a316ec30f38..b5541a4b8e8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-03-07 Richard Henderson + + * config/m68k/m68k.h (ISA_HAS_TAS): New. + * config/m68k/sync.md (atomic_test_and_set): Use it. + (atomic_test_and_set_1): Likewise. + 2012-03-07 Ralf Corsépius PR target/51417 diff --git a/gcc/config/m68k/m68k.h b/gcc/config/m68k/m68k.h index dbb97561d57..42d377942e7 100644 --- a/gcc/config/m68k/m68k.h +++ b/gcc/config/m68k/m68k.h @@ -249,6 +249,7 @@ along with GCC; see the file COPYING3. If not see /* Some instructions are common to more than one ISA. */ #define ISA_HAS_MVS_MVZ (TARGET_ISAB || TARGET_ISAC) #define ISA_HAS_FF1 (TARGET_ISAAPLUS || TARGET_ISAC) +#define ISA_HAS_TAS (!TARGET_COLDFIRE || TARGET_ISAB || TARGET_ISAC) #define TUNE_68000 (m68k_tune == u68000) #define TUNE_68010 (m68k_tune == u68010) diff --git a/gcc/config/m68k/sync.md b/gcc/config/m68k/sync.md index 6c840f51b60..d5cab792ba4 100644 --- a/gcc/config/m68k/sync.md +++ b/gcc/config/m68k/sync.md @@ -60,7 +60,7 @@ [(match_operand:QI 0 "register_operand" "") ;; bool success output (match_operand:QI 1 "memory_operand" "") ;; memory (match_operand:SI 2 "const_int_operand" "")] ;; model - "" + "ISA_HAS_TAS" { rtx t = gen_reg_rtx (QImode); emit_insn (gen_atomic_test_and_set_1 (t, operands[1])); @@ -77,5 +77,5 @@ UNSPECV_TAS_1)) (set (match_dup 1) (unspec_volatile:QI [(match_dup 1)] UNSPECV_TAS_2))] - "" + "ISA_HAS_TAS" "tas %1\;sne %0")