https://gcc.gnu.org/g:bd0913fd7db754c1a63baa34a2ecbda497d92de4
commit bd0913fd7db754c1a63baa34a2ecbda497d92de4
Author: Michael Meissner <meiss...@linux.ibm.com>
Date: Fri Nov 15 10:46:09 2024 -0500
Update ChangeLog.*
Diff:
---
gcc/ChangeLog.meissner | 233 ++++++-------------------------------------------
1 file changed, 28 insertions(+), 205 deletions(-)
diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index 842a7726a645..7085dc9802a7 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,53 +1,4 @@
-==================== Branch work186, patch #21 ====================
-
-Add -mcpu=future tuning support.
-
-This patch makes -mtune=future use the same tuning decision as -mtune=power11.
-
-2024-11-15 Michael Meissner <meiss...@linux.ibm.com>
-
-gcc/
-
- * config/rs6000/power10.md (all reservations): Add future as an
- alterntive to power10 and power11.
-
-==================== Branch work186, patch #20 ====================
-
-Add support for -mcpu=future
-
-This patch adds the support that can be used in developing GCC support for
-future PowerPC processors.
-
-2024-11-15 Michael Meissner <meiss...@linux.ibm.com>
-
- * config.gcc (powerpc*-*-*): Add support for --with-cpu=future.
- * config/rs6000/aix71.h (ASM_CPU_SPEC): Add support for -mcpu=future.
- * config/rs6000/aix72.h (ASM_CPU_SPEC): Likewise.
- * config/rs6000/aix73.h (ASM_CPU_SPEC): Likewise.
- * config/rs6000/driver-rs6000.cc (asm_names): Likewise.
- * config/rs6000/rs6000-arch.def: Add future cpu.
- * config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): If
- -mcpu=future, define _ARCH_FUTURE.
- * config/rs6000/rs6000-cpus.def (FUTURE_MASKS_SERVER): New macro.
- (future cpu): Define.
- * config/rs6000/rs6000-opts.h (enum processor_type): Add
- PROCESSOR_FUTURE.
- * config/rs6000/rs6000-tables.opt: Regenerate.
- * config/rs6000/rs6000.cc (power10_cost): Update comment.
- (get_arch_flags): Add support for future processor.
- (rs6000_option_override_internal): Likewise.
- (rs6000_machine_from_flags): Likewise.
- (rs6000_reassociation_width): Likewise.
- (rs6000_adjust_cost): Likewise.
- (rs6000_issue_rate): Likewise.
- (rs6000_sched_reorder): Likewise.
- (rs6000_sched_reorder2): Likewise.
- (rs6000_register_move_cost): Likewise.
- * config/rs6000/rs6000.h (ASM_CPU_SPEC): Likewise.
- (TARGET_POWER11): New macro.
- * config/rs6000/rs6000.md (cpu attribute): Likewise.
-
-==================== Branch work186, patch #12 ====================
+==================== Branch work186, patch #35 ====================
Do not allow -mvsx to boost processor to power7.
@@ -59,13 +10,8 @@ support, it will be an error.
I have built both big endian and little endian bootstrap compilers and there
were no regressions.
-In addition, I constructed a test case that used every archiecture define (like
-_ARCH_PWR4, etc.) and I also looked at the .machine directive generated. I ran
-this test for all supported combinations of -mcpu, big/little endian, and 32/64
-bit support. Every single instance generated exactly the same code with the
-patches installed compared to the compiler before installing the patches.
-
-I updated the 2 tests that used -mvsx to raise the cpu to power7.
+I updated the 2 tests that used -mvsx to raise the cpu to power7, and the test
+case that checks if -mno-vsx produces the expected warning.
Can I install this patch on the GCC 15 trunk?
@@ -73,146 +19,20 @@ Can I install this patch on the GCC 15 trunk?
gcc/
- * config/rs6000/rs6000.cc (report_architecture_mismatch): New function.
- Report an error if the user used an option such as -mvsx when the
- default processor would not allow the option.
- (rs6000_option_override_internal): Move some ISA checking code into
- report_architecture_mismatch.
+ * config/rs6000/rs6000.cc (rs6000_option_override_internal): Check if
+ the user asked for VSX instructions whether the cpu was at least power7.
gcc/testsuite/
* gcc.target/powerpc/ppc-target-4.c: Rewrite the test to add cpu=power7
when we need to add VSX support. Add test for adding cpu=power7 no-vsx
to generate only Altivec instructions.
- * gcc.target/powerpc/pr115688.c: Add -mdejagnu-cpu=power6 when
- requesting VSX instructions.
- * gcc.target/powerpc/pr87496-1.c: Update optins to use
+ * gcc.target/powerpc/pr115688.c: Add cpu=power7 in target __attribute__
+ when requesting VSX instructions.
+ * gcc.target/powerpc/pr87496-1.c: Update options to use
-mdejagnu-cpu=power6 to get the appropriate error message.
-==================== Branch work186, patch #11 ====================
-
-Use architecture flags for defining _ARCH_PWR macros.
-
-For the newer architectures, this patch changes GCC to define the _ARCH_PWR<n>
-macros using the new architecture flags instead of relying on isa options like
--mpower10.
-
-The -mpower8-internal, -mpower10, and -mpower11 options were removed. The
--mpower11 option was removed completely, since it was just added in GCC 15.
The
-other two options were marked as WarnRemoved, and the various ISA bits were
-removed.
-
-TARGET_POWER8 and TARGET_POWER10 were re-defined to use the architeture bits
-instead of the ISA bits.
-
-There are other internal isa bits that aren't removed with this patch because
-the built-in function support uses those bits.
-
-I have built both big endian and little endian bootstrap compilers and there
-were no regressions.
-
-Can I install this patch on the GCC 15 trunk?
-
-2024-11-15 Michael Meissner <meiss...@linux.ibm.com>
-
-gcc/
-
- * config/rs6000/rs6000-c.cc (rs6000_target_modify_macros) Add support to
- use architecture flags instead of ISA flags for setting most of the
- _ARCH_PWR* macros.
- (rs6000_cpu_cpp_builtins): Update rs6000_target_modify_macros call.
- * config/rs6000/rs6000-cpus.def (ISA_2_7_MASKS_SERVER): Remove
- OPTION_MASK_POWER8.
- (ISA_3_1_MASKS_SERVER): Remove OPTION_MASK_POWER10.
- (POWER11_MASKS_SERVER): Remove OPTION_MASK_POWER11.
- (POWERPC_MASKS): Remove OPTION_MASK_POWER8, OPTION_MASK_POWER10, and
- OPTION_MASK_POWER11.
- * config/rs6000/rs6000-protos.h (rs6000_target_modify_macros): Update
- declaration.
- (rs6000_target_modify_macros_ptr): Likewise.
- * config/rs6000/rs6000.cc (rs6000_target_modify_macros_ptr): Likewise.
- (rs6000_option_override_internal): Use architecture flags instead of ISA
- flags.
- (rs6000_opt_masks): Remove -mpower10 and -mpower11, which are no longer
- in the ISA flags.
- (rs6000_pragma_target_parse): Use architecture flags as well as ISA
- flags.
- * config/rs6000/rs6000.h (TpARGET_POWER5): New macro.
- (TARGET_POWER5X): Likewise.
- (TARGET_POWER6): Likewise.
- (TARGET_POWER7): Likewise.
- (TARGET_POWER8): Likewise.
- (TARGET_POWER9): Likewise.
- (TARGET_POWER10): Likewise.
- (TARGET_POWER11): Likewise.
- * config/rs6000/rs6000.opt (-mpower8-internal): Remove ISA flag bits.
- (-mpower10): Likewise.
- (-mpower11): Likewise.
-
-==================== Branch work186, patch #10 ====================
-
-Add rs6000 architecture masks.
-
-This patch begins the journey to move architecture bits that are not user ISA
-options from rs6000_isa_flags to a new targt variable rs6000_arch_flags. The
-intention is to remove switches that are currently isa options, but the user
-should not be using this particular option. For example, we want users to use
--mcpu=power10 and not just -mpower10.
-
-This patch also changes the target_clones support to use an architecture mask
-instead of isa bits.
-
-This patch also switches the handling of .machine to use architecture masks if
-they exist (power4 through power11). All of the other PowerPCs will continue
to
-use the existing code for setting the .machine option.
-
-I have built both big endian and little endian bootstrap compilers and there
-were no regressions.
-
-In addition, I constructed a test case that used every archiecture define (like
-_ARCH_PWR4, etc.) and I also looked at the .machine directive generated. I ran
-this test for all supported combinations of -mcpu, big/little endian, and 32/64
-bit support. Every single instance generated exactly the same code with the
-patches installed compared to the compiler before installing the patches.
-
-The only difference in this patch compared to the first version posted on
-November 6th is that I the correct attribution and copyright year (i.e. that I
-created rs6000-arch.def in 2024).
-
-Can I install this patch on the GCC 15 trunk?
-
-2024-11-13 Michael Meissner <meiss...@linux.ibm.com>
-
-gcc/
-
- * config/rs6000/default64.h (TARGET_CPU_DEFAULT): Set default cpu name.
- * config/rs6000/rs6000-arch.def: New file.
- * config/rs6000/rs6000.cc (struct clone_map): Switch to using
- architecture masks instead of ISA masks.
- (rs6000_clone_map): Likewise.
- (rs6000_print_isa_options): Add an architecture flags argument, change
- all callers.
- (get_arch_flag): New function.
- (rs6000_debug_reg_global): Update rs6000_print_isa_options calls.
- (rs6000_option_override_internal): Likewise.
- (rs6000_machine_from_flags): Switch to using architecture masks instead
- of ISA masks.
- (struct rs6000_arch_mask): New structure.
- (rs6000_arch_masks): New table of architecutre masks and names.
- (rs6000_function_specific_save): Save architecture flags.
- (rs6000_function_specific_restore): Restore architecture flags.
- (rs6000_function_specific_print): Update rs6000_print_isa_options calls.
- (rs6000_print_options_internal): Add architecture flags options.
- (rs6000_clone_priority): Switch to using architecture masks instead of
- ISA masks.
- (rs6000_can_inline_p): Don't allow inling if the callee requires a newer
- architecture than the caller.
- * config/rs6000/rs6000.h: Use rs6000-arch.def to create the architecture
- masks.
- * config/rs6000/rs6000.opt (rs6000_arch_flags): New target variable.
- (x_rs6000_arch_flags): New save/restore field for rs6000_arch_flags.
-
-==================== Branch work186, patch #5 ====================
+==================== Branch work186, patch #34 ====================
Change TARGET_MODULO to TARGET_POWER9.
@@ -238,7 +58,7 @@ gcc/
(umod<mode>3): Likewise.
(divide/modulo peephole2): Likewise.
-==================== Branch work186, patch #4 ====================
+==================== Branch work186, patch #33 ====================
Change TARGET_POPCNTD to TARGET_POWER7.
@@ -259,7 +79,6 @@ gcc/
Likewise.
(rs6000_option_override_internal): Likewise.
(rs6000_rtx_costs): Likewise.
- (rs6000_emit_popcount): Likewise.
* gcc/config/rs6000/rs6000.h (TARGET_LDBRX): Likewise.
(TARGET_FCFID): Likewise.
(TARGET_LFIWZX): Likewise.
@@ -273,8 +92,6 @@ gcc/
(TARGET_EXTRA_BUILTINS): Change TARGET_POPCNTD to TARGET_POWER7.
(CTZ_DEFINED_VALUE_AT_ZERO): Likewise.
* gcc/config/rs6000/rs6000.md (enabled attribute): Likewise.
- (ctz<mode>2): Likewise.
- (popcntd<mode>2): Likewise.
(lrint<mode>si2): Likewise.
(lrint<mode>si): Likewise.
(lrint<mode>si_di): Likewise.
@@ -285,7 +102,7 @@ gcc/
(cbcdtd): Likewise.
(div<div_extend>_<mode>): Likewise.
-==================== Branch work186, patch #3 ====================
+==================== Branch work186, patch #32 ====================
Change TARGET_CMPB to TARGET_POWER6.
@@ -308,15 +125,14 @@ gcc/
(TARGET_POWER6): New macro.
(TARGET_EXTRA_BUILTINS): Change TARGET_CMPB to TARGET_POWER6.
* gcc/config/rs6000/rs6000.md (enabled attribute): Likewise.
- (parity<mode>2_cmp): Change TARGET_CMPB to TARGET_POWER6. Eliminate
- redundant TARGET_POWER5 test.
- (cmpb<mode>3): Change TARGET_CMPB to TARGET_POWER6.
+ (parity<mode>2_cmp): Likewise.
+ (cmpb<mode>3): Likewise.
(copysign<mode>3): Likewise.
(copysign<mode>3_fcpsgn): Likewise.
(cmpstrnsi): Likewise.
(cmpstrsi): Likewise.
-==================== Branch work186, patch #2 ====================
+==================== Branch work186, patch #31 ====================
Change TARGET_FPRND to TARGET_POWER5X.
@@ -340,7 +156,7 @@ gcc/
(floor<mode>2): Likewise.
(round<mode>2): Likewise.
-==================== Branch work186, patch #1 ====================
+==================== Branch work186, patch #30 ====================
Change TARGET_POPCNTB to TARGET_POWER5.
@@ -354,18 +170,25 @@ gcc/
* gcc/config/rs6000/rs6000-builtin.cc (rs6000_builtin_is_supported):
Change TARGET_POPCNTB to TARGET_POWER5.
- * gcc/config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): Likewise.
+ * gcc/config/rs6000/rs6000.cc (rs6000_option_override_internal):
+ Likewise.
* gcc/config/rs6000/rs6000.h (TARGET_FCFID): Likewise.
(TARGET_POWER5): New macro.
(TARGET_EXTRA_BUILTINS): Change TARGET_POPCNTB to TARGET_POWER5.
(TARGET_FRE): Likewise.
(TARGET_FRSQRTES): Likewise.
* gcc/config/rs6000/rs6000.md (enabled attribute): Likewise.
- (popcount<mode>2): Change TARGET_POPCNTB to TARGET_POWER5. Delete
- redundant test for TARGET_POPCNTD.
- (popcntb<mode>): Change TARGET_POPCNTB to TARGET_POWER5.
- (popcntd<mode>): Likewise.
- (parity<mode>2): Likewise.
+
+==================== Branch work186, patch #21 was reverted
====================
+==================== Branch work186, patch #20 was reverted
====================
+==================== Branch work186, patch #12 was reverted
====================
+==================== Branch work186, patch #11 was reverted
====================
+==================== Branch work186, patch #10 was reverted
====================
+==================== Branch work186, patch #5 was reverted
====================
+==================== Branch work186, patch #4 was reverted
====================
+==================== Branch work186, patch #3 was reverted
====================
+==================== Branch work186, patch #2 was reverted
====================
+==================== Branch work186, patch #1 was reverted
====================
==================== Branch work186, baseline ====================
