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backport: sync.md: Update comment about unpredictable LL/SC lock clearing by a taken...
authorUros Bizjak <ubizjak@gmail.com>
Fri, 28 Aug 2009 13:15:27 +0000 (15:15 +0200)
committerUros Bizjak <uros@gcc.gnu.org>
Fri, 28 Aug 2009 13:15:27 +0000 (15:15 +0200)
Backport from mainline:
2009-08-26  Uros Bizjak  <ubizjak@gmail.com>

* config/alpha/sync.md: Update comment about unpredictable LL/SC lock
clearing by a taken branch.
(sync_<fetchop_name><mode>): Split when epilogue_completed is set,
effectively after bbro pass.
(sync_nand<mode>): Ditto.
(sync_old_<fetchop_name><mode>): Ditto.
(sync_old_nand<mode>): Ditto.
(sync_new_<fetchop_name><mode>): Dito.
(sync_new_nand<mode>): Ditto.
(sync_compare_and_swap<mode>_1): Ditto.
(*sync_compare_and_swap<mode>): Ditto.
(sync_lock_test_and_set<mode>_1): Ditto.
("sync_lock_test_and_set<mode>): Ditto.

2009-08-25  Uros Bizjak  <ubizjak@gmail.com>

* config/alpha/alpha.md (*cmpdf_ieee_ext[123]): Remove.
(*cmpdf_internal): Enable for all ALPHA_FPTM levels.
(*movdfcc_ext[1234]): Disable for IEEE mode.

2009-08-16  Uros Bizjak  <ubizjak@gmail.com>

* config/alpha/alpha.c (alpha_end_function): Handle NULL_RTX returned
from prev_active_insn.

testsuite/ChangeLog:

Backport from mainline:
2009-08-17  Uros Bizjak  <ubizjak@gmail.com>

* lib/target-supports.exp
(check_effective_target_vect_cmdline_needed): Add alpha to the list
of targets that do not need command line argument to enable SIMD.

From-SVN: r151160

gcc/ChangeLog patch | blob | blame | history
gcc/config/alpha/alpha.c patch | blob | blame | history
gcc/config/alpha/alpha.md patch | blob | blame | history
gcc/config/alpha/sync.md patch | blob | blame | history
gcc/testsuite/ChangeLog patch | blob | blame | history
gcc/testsuite/lib/target-supports.exp patch | blob | blame | history

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9ececb23744e377243058ccf7b034e971c0ceade..642029039ff277b4a2b0ce677bc4350e4c8f9124 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,33 @@
+2009-08-28  Uros Bizjak  <ubizjak@gmail.com>
+
+       Backport from mainline:
+       2009-08-26  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/alpha/sync.md: Update comment about unpredictable LL/SC lock
+       clearing by a taken branch.
+       (sync_<fetchop_name><mode>): Split when epilogue_completed is set,
+       effectively after bbro pass.
+       (sync_nand<mode>): Ditto.
+       (sync_old_<fetchop_name><mode>): Ditto.
+       (sync_old_nand<mode>): Ditto.
+       (sync_new_<fetchop_name><mode>): Dito.
+       (sync_new_nand<mode>): Ditto.
+       (sync_compare_and_swap<mode>_1): Ditto.
+       (*sync_compare_and_swap<mode>): Ditto.
+       (sync_lock_test_and_set<mode>_1): Ditto.
+       ("sync_lock_test_and_set<mode>): Ditto.
+
+       2009-08-25  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/alpha/alpha.md (*cmpdf_ieee_ext[123]): Remove.
+       (*cmpdf_internal): Enable for all ALPHA_FPTM levels.
+       (*movdfcc_ext[1234]): Disable for IEEE mode.
+
+       2009-08-16  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/alpha/alpha.c (alpha_end_function): Handle NULL_RTX returned
+       from prev_active_insn.
+
 2009-08-24  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/41094
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c
index 44c5776ab4aad8b789814e6af28709ef45fec9fd..3faeb0745fb4a038e94053f7da05c0b80b694c97 100644 (file)
--- a/gcc/config/alpha/alpha.c
+++ b/gcc/config/alpha/alpha.c
@@ -8259,7 +8259,7 @@ alpha_end_function (FILE *file, const char *fnname, tree decl ATTRIBUTE_UNUSED)
   insn = get_last_insn ();
   if (!INSN_P (insn))
     insn = prev_active_insn (insn);
-  if (GET_CODE (insn) == CALL_INSN)
+  if (insn && GET_CODE (insn) == CALL_INSN)
     output_asm_insn (get_insn_template (CODE_FOR_nop, NULL), NULL);
 
 #if TARGET_ABI_OSF
diff --git a/gcc/config/alpha/alpha.md b/gcc/config/alpha/alpha.md
index 8cb92def1b0a75ef5c167fcef3d68a8911e54297..897ecc477f21803165127f13ade8d36b3bcf0ddb 100644 (file)
--- a/gcc/config/alpha/alpha.md
+++ b/gcc/config/alpha/alpha.md
@@ -3699,19 +3699,7 @@
        (match_operator:DF 1 "alpha_fp_comparison_operator"
                           [(match_operand:DF 2 "reg_or_0_operand" "fG")
                            (match_operand:DF 3 "reg_or_0_operand" "fG")]))]
-  "TARGET_FP && alpha_fptm < ALPHA_FPTM_SU"
-  "cmp%-%C1%/ %R2,%R3,%0"
-  [(set_attr "type" "fadd")
-   (set_attr "trap" "yes")
-   (set_attr "trap_suffix" "su")])
-
-(define_insn "*cmpdf_ieee_ext1"
-  [(set (match_operand:DF 0 "register_operand" "=&f")
-       (match_operator:DF 1 "alpha_fp_comparison_operator"
-                          [(float_extend:DF
-                            (match_operand:SF 2 "reg_or_0_operand" "fG"))
-                           (match_operand:DF 3 "reg_or_0_operand" "fG")]))]
-  "TARGET_FP && alpha_fptm >= ALPHA_FPTM_SU"
+  "TARGET_FP"
   "cmp%-%C1%/ %R2,%R3,%0"
   [(set_attr "type" "fadd")
    (set_attr "trap" "yes")
@@ -3729,18 +3717,6 @@
    (set_attr "trap" "yes")
    (set_attr "trap_suffix" "su")])
 
-(define_insn "*cmpdf_ieee_ext2"
-  [(set (match_operand:DF 0 "register_operand" "=&f")
-       (match_operator:DF 1 "alpha_fp_comparison_operator"
-                          [(match_operand:DF 2 "reg_or_0_operand" "fG")
-                           (float_extend:DF
-                            (match_operand:SF 3 "reg_or_0_operand" "fG"))]))]
-  "TARGET_FP && alpha_fptm >= ALPHA_FPTM_SU"
-  "cmp%-%C1%/ %R2,%R3,%0"
-  [(set_attr "type" "fadd")
-   (set_attr "trap" "yes")
-   (set_attr "trap_suffix" "su")])
-
 (define_insn "*cmpdf_ext2"
   [(set (match_operand:DF 0 "register_operand" "=f")
        (match_operator:DF 1 "alpha_fp_comparison_operator"
@@ -3753,19 +3729,6 @@
    (set_attr "trap" "yes")
    (set_attr "trap_suffix" "su")])
 
-(define_insn "*cmpdf_ieee_ext3"
-  [(set (match_operand:DF 0 "register_operand" "=&f")
-       (match_operator:DF 1 "alpha_fp_comparison_operator"
-                          [(float_extend:DF
-                            (match_operand:SF 2 "reg_or_0_operand" "fG"))
-                           (float_extend:DF
-                            (match_operand:SF 3 "reg_or_0_operand" "fG"))]))]
-  "TARGET_FP && alpha_fptm >= ALPHA_FPTM_SU"
-  "cmp%-%C1%/ %R2,%R3,%0"
-  [(set_attr "type" "fadd")
-   (set_attr "trap" "yes")
-   (set_attr "trap_suffix" "su")])
-
 (define_insn "*cmpdf_ext3"
   [(set (match_operand:DF 0 "register_operand" "=f")
        (match_operator:DF 1 "alpha_fp_comparison_operator"
@@ -3815,7 +3778,7 @@
                          (match_operand:DF 2 "const0_operand" "G,G")])
         (float_extend:DF (match_operand:SF 1 "reg_or_0_operand" "fG,0"))
         (match_operand:DF 5 "reg_or_0_operand" "0,fG")))]
-  "TARGET_FP"
+  "TARGET_FP && alpha_fptm < ALPHA_FPTM_SU"
   "@
    fcmov%C3 %R4,%R1,%0
    fcmov%D3 %R4,%R5,%0"
@@ -3830,7 +3793,7 @@
                          (match_operand:DF 2 "const0_operand" "G,G")])
         (match_operand:DF 1 "reg_or_0_operand" "fG,0")
         (match_operand:DF 5 "reg_or_0_operand" "0,fG")))]
-  "TARGET_FP"
+  "TARGET_FP && alpha_fptm < ALPHA_FPTM_SU"
   "@
    fcmov%C3 %R4,%R1,%0
    fcmov%D3 %R4,%R5,%0"
@@ -3845,7 +3808,7 @@
                          (match_operand:DF 2 "const0_operand" "G,G")])
         (match_operand:SF 1 "reg_or_0_operand" "fG,0")
         (match_operand:SF 5 "reg_or_0_operand" "0,fG")))]
-  "TARGET_FP"
+  "TARGET_FP && alpha_fptm < ALPHA_FPTM_SU"
   "@
    fcmov%C3 %R4,%R1,%0
    fcmov%D3 %R4,%R5,%0"
@@ -3860,7 +3823,7 @@
                          (match_operand:DF 2 "const0_operand" "G,G")])
         (float_extend:DF (match_operand:SF 1 "reg_or_0_operand" "fG,0"))
         (match_operand:DF 5 "reg_or_0_operand" "0,fG")))]
-  "TARGET_FP"
+  "TARGET_FP && alpha_fptm < ALPHA_FPTM_SU"
   "@
    fcmov%C3 %R4,%R1,%0
    fcmov%D3 %R4,%R5,%0"
diff --git a/gcc/config/alpha/sync.md b/gcc/config/alpha/sync.md
index 5c0d284033434837720322a629a1d45713056b69..836a93434fa55607a59db64a00199ca47bcdbfbd 100644 (file)
--- a/gcc/config/alpha/sync.md
+++ b/gcc/config/alpha/sync.md
@@ -62,11 +62,8 @@
   [(set_attr "type" "st_c")])
 
 ;; The Alpha Architecture Handbook says that it is UNPREDICTABLE whether
-;; the lock is cleared by a TAKEN branch.  If we were to honor that, it
-;; would mean that we could not expand a ll/sc sequence until after the
-;; final basic-block reordering pass.  Fortunately, it appears that no
-;; Alpha implementation ever built actually clears the lock on branches,
-;; taken or not.
+;; the lock is cleared by a TAKEN branch.  This means that we can not
+;; expand a ll/sc sequence until after the final basic-block reordering pass.
 
 (define_insn_and_split "sync_<fetchop_name><mode>"
   [(set (match_operand:I48MODE 0 "memory_operand" "+m")
@@ -77,7 +74,7 @@
    (clobber (match_scratch:I48MODE 2 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_atomic_op (<CODE>, operands[0], operands[1],
@@ -95,7 +92,7 @@
    (clobber (match_scratch:I48MODE 2 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_atomic_op (NOT, operands[0], operands[1],
@@ -115,7 +112,7 @@
    (clobber (match_scratch:I48MODE 3 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_atomic_op (<CODE>, operands[1], operands[2],
@@ -135,7 +132,7 @@
    (clobber (match_scratch:I48MODE 3 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_atomic_op (NOT, operands[1], operands[2],
@@ -156,7 +153,7 @@
    (clobber (match_scratch:I48MODE 3 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_atomic_op (<CODE>, operands[1], operands[2],
@@ -177,7 +174,7 @@
    (clobber (match_scratch:I48MODE 3 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_atomic_op (NOT, operands[1], operands[2],
@@ -212,7 +209,7 @@
    (clobber (match_scratch:DI 6 "=X,&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_compare_and_swap_12 (<MODE>mode, operands[0], operands[1],
@@ -249,7 +246,7 @@
    (clobber (match_scratch:I48MODE 4 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_compare_and_swap (operands[0], operands[1], operands[2],
@@ -280,7 +277,7 @@
    (clobber (match_scratch:DI 4 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_lock_test_and_set_12 (<MODE>mode, operands[0], operands[1],
@@ -299,7 +296,7 @@
    (clobber (match_scratch:I48MODE 3 "=&r"))]
   ""
   "#"
-  "reload_completed"
+  "epilogue_completed"
   [(const_int 0)]
 {
   alpha_split_lock_test_and_set (operands[0], operands[1],
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cc883d55e9ee7b1a10a5540cbd48368ee4da1d5a..e27d2eda3238b890148d5e6f96c06265ff7957ea 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2009-08-28  Uros Bizjak  <ubizjak@gmail.com>
+
+       Backport from mainline:
+       2009-08-17  Uros Bizjak  <ubizjak@gmail.com>
+
+       * lib/target-supports.exp
+       (check_effective_target_vect_cmdline_needed): Add alpha to the list
+       of targets that do not need command line argument to enable SIMD.
+
 2009-08-24  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/41094
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index c9e6826a4032f4dd8afc03dfc1cbdfb617d4f586..ab9886f2ef0067a1984d563d497f6b113c8d00bb 100644 (file)
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -1086,7 +1086,8 @@ proc check_effective_target_vect_cmdline_needed { } {
        verbose "check_effective_target_vect_cmdline_needed: using cached result" 2
     } else {
        set et_vect_cmdline_needed_saved 1
-       if { [istarget ia64-*-*]
+       if { [istarget alpha*-*-*]
+            || [istarget ia64-*-*]
             || (([istarget x86_64-*-*] || [istarget i?86-*-*])
                 && [check_effective_target_lp64])
             || ([istarget powerpc*-*-*]
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