https://gcc.gnu.org/g:0419f3a66728eea2cfb6969cb004ac5a2ace4ea5
commit 0419f3a66728eea2cfb6969cb004ac5a2ace4ea5
Author: Michael Meissner <meiss...@linux.ibm.com>
Date: Wed Jul 31 15:51:46 2024 -0400
Update ChangeLog.*
Diff:
---
gcc/ChangeLog.meissner | 149 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 149 insertions(+)
diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index df473b6b2313..8e1fc5989cc9 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,3 +1,152 @@
+==================== Branch work174, patch #35 ====================
+
+Update tests to work with architecture flags changes.
+
+Two tests used -mvsx to raise the processor level to at least power7. These
+tests were rewritten to add cpu=power7 support.
+
+2024-07-31 Michael Meissner <meiss...@linux.ibm.com>
+
+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 cpu=power7 when requesting VSX
+ instructions.
+
+==================== Branch work174, patch #34 ====================
+
+Do not allow -mvsx to boost processor to power7.
+
+This patch restructures the code so that -mvsx for example will not silently
+convert the processor to power7. The user must now use -mcpu=power7 or higher.
+This means if the user does -mvsx and the default processor does not have VSX
+support, it will be an error.
+
+2024-07-31 Michael Meissner <meiss...@linux.ibm.com>
+
+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.
+
+==================== Branch work174, patch #33 ====================
+
+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.
+
+2024-07-31 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 (TARGET_POWER8): New macro.
+ (TARGET_POWER10): Likewise.
+ * config/rs6000/rs6000.opt (-mpower8-internal): Remove ISA flag bits.
+ (-mpower10): Likewise.
+ (-mpower11): Likewise.
+
+==================== Branch work174, patch #32 ====================
+
+Set .machine from the architecture flags
+
+This patch 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.
+
+2024-07-31 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/rs6000 (rs6000_machine_from_flags): Set .machine from
+ the architecture flags.
+
+==================== Branch work174, patch #31 ====================
+
+Make clone_targets use architecture flags.
+
+This patch expands on the previous patch and changes the target_clones support
+to use an architecture mask instead of isa bits.
+
+2024-07-31 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/rs6000.cc (struct clone_map): Switch to use architecture
+ flags instead of ISA flags for target_clone support.
+ (rs6000_clone_map): Likewise.
+ (rs6000_clone_priority): Likewise.
+
+==================== Branch work174, patch #30 ====================
+
+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.
+
+2024-07-31 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/rs6000-arch.def: New file.
+ * config/rs6000/rs6000.cc (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.
+ (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_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 work174, patches #1..26 were reverted
====================
==================== Branch work174, baseline ====================
