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Commit Graph

Author	SHA1	Message	Date
Ben Shi	c41d425030	[AVR][MC] Fix illegal operand forms. These operands are illegal and rejected by avr-gcc. subi r24, -lo8(symobl+offset) sbci r25, -hi8(symobl+offset) And their correct form should be subi r24, lo8(-(symobl+offset)) sbci r25, hi8(-(symobl+offset)) Reviewed By: aykevl Differential Revision: https://reviews.llvm.org/D140473	2022-12-23 09:48:06 +08:00
Ayke van Laethem	91ae1afd3c	[AVR] Remove unused register scavenger The LPMW/ELPMW instruction can be modified to use an earlyclobber, which prevents it from using the Z register as an output register. Also see: https://reviews.llvm.org/D131844 Differential Revision: https://reviews.llvm.org/D117957	2022-11-27 15:31:12 +01:00
Ben Shi	94173dc24c	[AVR] Generate ELPM for loading byte/word from extended program memory Reviewed By: aykevl Differential Revision: https://reviews.llvm.org/D116493	2022-01-20 02:53:10 +00:00

Author

SHA1

Message

Date

Ben Shi

c41d425030

[AVR][MC] Fix illegal operand forms.

These operands are illegal and rejected by avr-gcc.
    subi r24, -lo8(symobl+offset)
    sbci r25, -hi8(symobl+offset)

And their correct form should be
    subi r24, lo8(-(symobl+offset))
    sbci r25, hi8(-(symobl+offset))

Reviewed By: aykevl

Differential Revision: https://reviews.llvm.org/D140473

2022-12-23 09:48:06 +08:00

Ayke van Laethem

91ae1afd3c

[AVR] Remove unused register scavenger

The LPMW/ELPMW instruction can be modified to use an earlyclobber, which
prevents it from using the Z register as an output register.

Also see: https://reviews.llvm.org/D131844

Differential Revision: https://reviews.llvm.org/D117957

2022-11-27 15:31:12 +01:00

Ben Shi

94173dc24c

[AVR] Generate ELPM for loading byte/word from extended program memory

Reviewed By: aykevl

Differential Revision: https://reviews.llvm.org/D116493

2022-01-20 02:53:10 +00:00

3 Commits