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* [gcc r14-9188] AVR: Tag optimization options as "Optimization".
@ 2024-02-26 21:09 Georg-Johann Lay
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From: Georg-Johann Lay @ 2024-02-26 21:09 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:96773ce7d667452a50b0456681f415b47c22960a
commit r14-9188-g96773ce7d667452a50b0456681f415b47c22960a
Author: Georg-Johann Lay <avr@gjlay.de>
Date: Mon Feb 26 21:20:41 2024 +0100
AVR: Tag optimization options as "Optimization".
Some options that are pure optimizations where not tagged as such.
gcc/
* config/avr/avr.opt (mcall-prologues, mrelax, maccumulate-args)
(mstrict-X): Tag as "Optimization".
Diff:
---
gcc/config/avr/avr.opt | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/gcc/config/avr/avr.opt b/gcc/config/avr/avr.opt
index c9f2b4d2fe55..76530fd0f71b 100644
--- a/gcc/config/avr/avr.opt
+++ b/gcc/config/avr/avr.opt
@@ -19,7 +19,7 @@
; <http://www.gnu.org/licenses/>.
mcall-prologues
-Target Mask(CALL_PROLOGUES)
+Target Mask(CALL_PROLOGUES) Optimization
Use subroutines for function prologues and epilogues.
mmcu=
@@ -79,7 +79,7 @@ Target Mask(TINY_STACK)
Change only the low 8 bits of the stack pointer.
mrelax
-Target
+Target Optimization
Relax branches.
mpmem-wrap-around
@@ -87,11 +87,11 @@ Target
Make the linker relaxation machine assume that a program counter wrap-around occurs.
maccumulate-args
-Target Mask(ACCUMULATE_OUTGOING_ARGS)
+Target Mask(ACCUMULATE_OUTGOING_ARGS) Optimization
Accumulate outgoing function arguments and acquire/release the needed stack space for outgoing function arguments in function prologue/epilogue. Without this option, outgoing arguments are pushed before calling a function and popped afterwards. This option can lead to reduced code size for functions that call many functions that get their arguments on the stack like, for example printf.
mstrict-X
-Target Var(avr_strict_X) Init(0)
+Target Var(avr_strict_X) Init(0) Optimization
When accessing RAM, use X as imposed by the hardware, i.e. just use pre-decrement, post-increment and indirect addressing with the X register. Without this option, the compiler may assume that there is an addressing mode X+const similar to Y+const and Z+const and emit instructions to emulate such an addressing mode for X.
mflmap
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