https://gcc.gnu.org/g:66de2c74aebd4e587a9aa4e20eb0b71dfa7450e2
commit 66de2c74aebd4e587a9aa4e20eb0b71dfa7450e2
Author: Michael Meissner <meiss...@linux.ibm.com>
Date: Tue Mar 12 21:09:53 2024 -0400
Update ChangeLog.*
Diff:
---
gcc/ChangeLog.vpair | 211 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 211 insertions(+)
diff --git a/gcc/ChangeLog.vpair b/gcc/ChangeLog.vpair
index faeb03cac7b..184e4f8bccc 100644
--- a/gcc/ChangeLog.vpair
+++ b/gcc/ChangeLog.vpair
@@ -1,5 +1,216 @@
+==================== Branch work162-vpair, patch #205 ====================
+
+Add vector pair optimizations.
+
+2024-03-12 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/vector-pair.md (vpair_add_neg_<vpair_modename>3): New
+ combiner insn to convert vector plus/neg into a minus operation.
+ (vpair_fma_<vpair_modename>_merge): Optimize multiply, add/subtract, and
+ negation into fma operations if the user specifies to create fmas.
+ (vpair_fma_<vpair_modename>_merge): Likewise.
+ (vpair_fma_<vpair_modename>_merge2): Likewise.
+ (vpair_nfma_<vpair_modename>_merge): Likewise.
+ (vpair_nfms_<vpair_modename>_merge): Likewise.
+ (vpair_nfms_<vpair_modename>_merge2): Likewise.
+
+gcc/testsuite/
+
+ * gcc.target/powerpc/vector-pair-7.c: New test.
+ * gcc.target/powerpc/vector-pair-8.c: Likewise.
+ * gcc.target/powerpc/vector-pair-9.c: Likewise.
+ * gcc.target/powerpc/vector-pair-10.c: Likewise.
+ * gcc.target/powerpc/vector-pair-11.c: Likewise.
+ * gcc.target/powerpc/vector-pair-12xs.c: Likewise.
+
+==================== Branch work162-vpair, patch #204 ====================
+
+Add vector pair init and splat.
+
+2024-03-12 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/rs6000-builtins.def (__builtin_vpair_zero): New
+ built-in function.
+ (__builtin_vpair_f32_splat): Likewise.
+ (__builtin_vpair_f64_splat): Likewise.
+ * config/rs6000/vector-pair.md (UNSPEC_VPAIR_ZERO): New unspec.
+ (UNSPEC_VPAIR_SPLAT): Likewise.
+ (VPAIR_SPLAT_VMODE): New mode iterator.
+ (VPAIR_SPLAT_ELEMENT_TO_VMODE): New mode attribute.
+ (vpair_splat_name): Likewise.
+ (vpair_zero): New insn.
+ (vpair_splat_<vpair_splat_name>): New define_expand.
+ (vpair_splat_<vpair_splat_name>_internal): New insns.
+
+gcc/testsuite/
+
+ * gcc.target/powerpc/vector-pair-5.c: New test.
+ * gcc.target/powerpc/vector-pair-6.c: Likewise.
+
+==================== Branch work162-vpair, patch #203 ====================
+
+Add support for vector pair fma operations.
+
+2024-03-12 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/rs6000-builtins.def (__builtin_vpair_f32_fma): New
+ built-in.
+ (__builtin_vpair_f32_fms): Likewise.
+ (__builtin_vpair_f32_nfma): Likewise.
+ (__builtin_vpair_f32_nfms): Likewise.
+ (__builtin_vpair_f64_fma): Likewise.
+ (__builtin_vpair_f64_fms): Likewise.
+ (__builtin_vpair_f64_nfma): Likewise.
+ * config/rs6000/rs6000/rs6000-proto.h (enum vpair_split_fma): New
+ enumeration.
+ (vpair_split_fma): New declaration.
+ * config/rs6000/rs6000.cc (vpair_split_fma): New function to split
+ vector pair FMA operations.
+ * config/rs6000/vector-pair.md (UNSPEC_VPAIR_FMA): New unspec.
+ (vpair_stdname): Add UNSPEC_VPAIR_FMA.
+ (VPAIR_OP): Likewise.
+ (vpair_fma_<vpair_modename>4): New insns.
+ (vpair_fms_<vpair_modename>4): Likewise.
+ (vpair_nfma_<vpair_modename>4): Likewise.
+ (vpair_nfms_<vpair_modename>4): Likewise.
+ * doc/extend.texi (PowerPC Vector Pair Built-in Functions): Document new
+ vector pair fma built-in functions.
+
+gcc/testsuite/
+
+ * gcc.target/powerpc/vector-pair-3.c: New test.
+ * gcc.target/powerpc/vector-pair-4.c: Likewise.
+
+==================== Branch work162-vpair, patch #202 ====================
+
+Add support for vector pair unary and binary operations.
+
+2024-03-12 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/rs6000-builtins.def (__builtin_vpair_*): Add new
+ built-in functions for vector pair support.
+ * config/rs6000/rs6000-protos.h (enum vpair_split_unary): New
+ enumeration.
+ (vpair_split_unary): New declaration.
+ (vpair_split_binary): Likewise.
+ * config/rs6000/rs6000.cc (vpair_split_unary): New function to split
+ vector pair operations.
+ (vpair_split_binary): Likewise.
+ * config/rs6000/rs6000.md (toplevel): Include vector-pair.md.
+ * config/rs6000/t-rs6000 (MD_INCLUDES): Add vector-pair.md.
+ * config/rs6000/vector-pair.md: New file.
+ * doc/extend.texi (PowerPC Vector Pair Built-in Functions): Add
+ documentation for the new vector pair built-in functions.
+
+gcc/testsuite/
+
+ * gcc.target/powerpc/vector-pair-1.c: New test.
+ * gcc.target/powerpc/vector-pair-2.c: Likewise.
+
+==================== Branch work162-vpair, patch #201 ====================
+
+Peter's patches for subreg support.
+
+2024-03-12 Peter Bergner <berg...@linux.ibm.com>
+
+gcc/
+
+ PR target/109116
+ * gcc/config/rs6000/rs6000.cc (rs6000_modes_tieable_p): Make OOmode
+ tieable with 128-bit vector modes.
+
+2024-01-23 Peter Bergner <berg...@linux.ibm.com>
+
+gcc/
+
+ PR target/109116
+ * gcc/config/rs6000/mma.md (vsx_disassemble_pair): Use SUBREG's instead
+ of UNSPEC's.
+ (mma_disassemble_acc): Likewise.
+
+==================== Branch work162-vpair, patch #200 ====================
+
+Power10: Add options to disable load and store vector pair.
+
+In working on some future patches that involve utilizing vector pair
+instructions, I wanted to be able to tune my program to enable or disable using
+the vector pair load or store operations while still keeping the other
+operations on the vector pair.
+
+This patch adds two undocumented tuning options. The -mno-load-vector-pair
+option would tell GCC to generate two load vector instructions instead of a
+single load vector pair. The -mno-store-vector-pair option would tell GCC to
+generate two store vector instructions instead of a single store vector pair.
+
+If either -mno-load-vector-pair is used, GCC will not generate the indexed
+stxvpx instruction. Similarly if -mno-store-vector-pair is used, GCC will not
+generate the indexed lxvpx instruction. The reason for this is to enable
+splitting the {,p}lxvp or {,p}stxvp instructions after reload without needing a
+scratch GPR register.
+
+The default for -mcpu=power10 is that both load vector pair and store vector
+pair are enabled.
+
+I added code so that the user code can modify these settings using either a
+'#pragma GCC target' directive or used __attribute__((__target__(...))) in the
+function declaration.
+
+I added tests for the switches, #pragma, and attribute options.
+
+I have built this on both little endian power10 systems and big endian power9
+systems doing the normal bootstrap and test. There were no regressions in any
+of the tests, and the new tests passed. Can I check this patch into the master
+branch?
+
+2024-03-12 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/mma.md (movoo): Add support for -mno-load-vector-pair
and
+ -mno-store-vector-pair.
+ * config/rs6000/rs6000-cpus.def (OTHER_POWER10_MASKS): Add support for
+ -mload-vector-pair and -mstore-vector-pair.
+ (POWERPC_MASKS): Likewise.
+ * config/rs6000/rs6000.cc (rs6000_setup_reg_addr_masks): Only allow
+ indexed mode for OOmode if we are generating both load vector pair and
+ store vector pair instructions.
+ (rs6000_option_override_internal): Add support for -mno-load-vector-pair
+ and -mno-store-vector-pair.
+ (rs6000_opt_masks): Likewise.
+ * config/rs6000/rs6000.md (isa attribute): Add lxvp and stxvp
+ attributes.
+ (enabled attribute): Likewise.
+ * config/rs6000/rs6000.opt (-mload-vector-pair): New option.
+ (-mstore-vector-pair): Likewise.
+
+gcc/testsuite/
+
+ * gcc.target/powerpc/vector-pair-attribute.c: New test.
+ * gcc.target/powerpc/vector-pair-pragma.c: New test.
+ * gcc.target/powerpc/vector-pair-switch1.c: New test.
+ * gcc.target/powerpc/vector-pair-switch2.c: New test.
+ * gcc.target/powerpc/vector-pair-switch3.c: New test.
+ * gcc.target/powerpc/vector-pair-switch4.c: New test.
+
==================== Branch work162-vpair, baseline ====================
+Add ChangeLog.vpair and update REVISION.
+
+2024-03-07 Michael Meissner <meiss...@linux.ibm.com>
+
+gcc/
+
+ * ChangeLog.vpair: New file for branch.
+ * REVISION: Update.
+
2024-03-07 Michael Meissner <meiss...@linux.ibm.com>
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