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AVR: Tag optimization options as "Optimization".

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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".
This commit is contained in:
Georg-Johann Lay 2024-02-26 21:20:41 +01:00
parent 9b0f7ef8bc
commit 96773ce7d6
1 changed files with 4 additions and 4 deletions
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8
gcc/config/avr/avr.opt
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@ -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