From: Daniel Engel <gnu@danielengel.com>
To: Richard Earnshaw <Richard.Earnshaw@foss.arm.com>,
gcc-patches@gcc.gnu.org
Cc: Daniel Engel <gnu@danielengel.com>,
Christophe Lyon <christophe.lyon@linaro.org>
Subject: [PATCH v7 16/34] Refactor Thumb-1 64-bit comparison into a new file
Date: Mon, 31 Oct 2022 08:45:11 -0700 [thread overview]
Message-ID: <20221031154529.3627576-17-gnu@danielengel.com> (raw)
In-Reply-To: <20221031154529.3627576-1-gnu@danielengel.com>
This will make it easier to isolate changes in subsequent patches.
gcc/libgcc/ChangeLog:
2022-10-09 Daniel Engel <gnu@danielengel.com>
* config/arm/bpabi-v6m.S (__aeabi_lcmp, __aeabi_ulcmp): Moved to ...
* config/arm/eabi/lcmp.S: New file.
* config/arm/lib1funcs.S: #include eabi/lcmp.S.
---
libgcc/config/arm/bpabi-v6m.S | 46 ----------------------
libgcc/config/arm/eabi/lcmp.S | 73 +++++++++++++++++++++++++++++++++++
libgcc/config/arm/lib1funcs.S | 1 +
3 files changed, 74 insertions(+), 46 deletions(-)
create mode 100644 libgcc/config/arm/eabi/lcmp.S
diff --git a/libgcc/config/arm/bpabi-v6m.S b/libgcc/config/arm/bpabi-v6m.S
index ea01d3f4d5f..3757e99508e 100644
--- a/libgcc/config/arm/bpabi-v6m.S
+++ b/libgcc/config/arm/bpabi-v6m.S
@@ -33,52 +33,6 @@
.eabi_attribute 25, 1
#endif /* __ARM_EABI__ */
-#ifdef L_aeabi_lcmp
-
-FUNC_START aeabi_lcmp
- cmp xxh, yyh
- beq 1f
- bgt 2f
- movs r0, #1
- negs r0, r0
- RET
-2:
- movs r0, #1
- RET
-1:
- subs r0, xxl, yyl
- beq 1f
- bhi 2f
- movs r0, #1
- negs r0, r0
- RET
-2:
- movs r0, #1
-1:
- RET
- FUNC_END aeabi_lcmp
-
-#endif /* L_aeabi_lcmp */
-
-#ifdef L_aeabi_ulcmp
-
-FUNC_START aeabi_ulcmp
- cmp xxh, yyh
- bne 1f
- subs r0, xxl, yyl
- beq 2f
-1:
- bcs 1f
- movs r0, #1
- negs r0, r0
- RET
-1:
- movs r0, #1
-2:
- RET
- FUNC_END aeabi_ulcmp
-
-#endif /* L_aeabi_ulcmp */
.macro test_div_by_zero signed
cmp yyh, #0
diff --git a/libgcc/config/arm/eabi/lcmp.S b/libgcc/config/arm/eabi/lcmp.S
new file mode 100644
index 00000000000..336db1d398c
--- /dev/null
+++ b/libgcc/config/arm/eabi/lcmp.S
@@ -0,0 +1,73 @@
+/* Miscellaneous BPABI functions. Thumb-1 implementation, suitable for ARMv4T,
+ ARMv6-M and ARMv8-M Baseline like ISA variants.
+
+ Copyright (C) 2006-2020 Free Software Foundation, Inc.
+ Contributed by CodeSourcery.
+
+ This file is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 3, or (at your option) any
+ later version.
+
+ This file is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#ifdef L_aeabi_lcmp
+
+FUNC_START aeabi_lcmp
+ cmp xxh, yyh
+ beq 1f
+ bgt 2f
+ movs r0, #1
+ negs r0, r0
+ RET
+2:
+ movs r0, #1
+ RET
+1:
+ subs r0, xxl, yyl
+ beq 1f
+ bhi 2f
+ movs r0, #1
+ negs r0, r0
+ RET
+2:
+ movs r0, #1
+1:
+ RET
+ FUNC_END aeabi_lcmp
+
+#endif /* L_aeabi_lcmp */
+
+#ifdef L_aeabi_ulcmp
+
+FUNC_START aeabi_ulcmp
+ cmp xxh, yyh
+ bne 1f
+ subs r0, xxl, yyl
+ beq 2f
+1:
+ bcs 1f
+ movs r0, #1
+ negs r0, r0
+ RET
+1:
+ movs r0, #1
+2:
+ RET
+ FUNC_END aeabi_ulcmp
+
+#endif /* L_aeabi_ulcmp */
+
diff --git a/libgcc/config/arm/lib1funcs.S b/libgcc/config/arm/lib1funcs.S
index 0eb6d1d52a7..d85a20252d9 100644
--- a/libgcc/config/arm/lib1funcs.S
+++ b/libgcc/config/arm/lib1funcs.S
@@ -1991,5 +1991,6 @@ LSYM(Lchange_\register):
#include "bpabi.S"
#else /* NOT_ISA_TARGET_32BIT */
#include "bpabi-v6m.S"
+#include "eabi/lcmp.S"
#endif /* NOT_ISA_TARGET_32BIT */
#endif /* !__symbian__ */
--
2.34.1
next prev parent reply other threads:[~2022-10-31 15:47 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-31 15:44 [PATCH v7 00/34] libgcc: Thumb-1 Floating-Point Assembly for Cortex M0 Daniel Engel
2022-10-31 15:44 ` [PATCH v7 01/34] Add and restructure function declaration macros Daniel Engel
2022-10-31 15:44 ` [PATCH v7 02/34] Rename THUMB_FUNC_START to THUMB_FUNC_ENTRY Daniel Engel
2022-10-31 15:44 ` [PATCH v7 03/34] Fix syntax warnings on conditional instructions Daniel Engel
2022-10-31 15:44 ` [PATCH v7 04/34] Reorganize LIB1ASMFUNCS object wrapper macros Daniel Engel
2022-10-31 15:45 ` [PATCH v7 05/34] Add the __HAVE_FEATURE_IT and IT() macros Daniel Engel
2022-10-31 15:45 ` [PATCH v7 06/34] Refactor 'clz' functions into a new file Daniel Engel
2022-10-31 15:45 ` [PATCH v7 07/34] Refactor 'ctz' " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 08/34] Refactor 64-bit shift " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 09/34] Import 'clz' functions from the CM0 library Daniel Engel
2022-10-31 15:45 ` [PATCH v7 10/34] Import 'ctz' " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 11/34] Import 64-bit shift " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 12/34] Import 'clrsb' " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 13/34] Import 'ffs' " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 14/34] Import 'parity' " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 15/34] Import 'popcnt' " Daniel Engel
2022-10-31 15:45 ` Daniel Engel [this message]
2022-10-31 15:45 ` [PATCH v7 17/34] Import 64-bit comparison from " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 18/34] Merge Thumb-2 optimizations for 64-bit comparison Daniel Engel
2022-10-31 15:45 ` [PATCH v7 19/34] Import 32-bit division from the CM0 library Daniel Engel
2022-10-31 15:45 ` [PATCH v7 20/34] Refactor Thumb-1 64-bit division into a new file Daniel Engel
2022-10-31 15:45 ` [PATCH v7 21/34] Import 64-bit division from the CM0 library Daniel Engel
2022-10-31 15:45 ` [PATCH v7 22/34] Import integer multiplication " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 23/34] Refactor Thumb-1 float comparison into a new file Daniel Engel
2022-10-31 15:45 ` [PATCH v7 24/34] Import float comparison from the CM0 library Daniel Engel
2022-10-31 15:45 ` [PATCH v7 25/34] Refactor Thumb-1 float subtraction into a new file Daniel Engel
2022-10-31 15:45 ` [PATCH v7 26/34] Import float addition and subtraction from the CM0 library Daniel Engel
2022-10-31 15:45 ` [PATCH v7 27/34] Import float multiplication " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 28/34] Import float division " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 29/34] Import integer-to-float conversion " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 30/34] Import float-to-integer " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 31/34] Import float<->double " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 32/34] Import float<->__fp16 " Daniel Engel
2022-10-31 15:45 ` [PATCH v7 33/34] Drop single-precision Thumb-1 soft-float functions Daniel Engel
2022-10-31 15:45 ` [PATCH v7 34/34] Add -mpure-code support to the CM0 functions Daniel Engel
2022-11-15 15:27 ` [PING] Re: [PATCH v7 00/34] libgcc: Thumb-1 Floating-Point Assembly for Cortex M0 Daniel Engel
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