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| author | Ian Lance Taylor <iant@golang.org> | 2022-09-22 06:29:20 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2022-09-22 06:29:20 -0700 |
| commit | 795cffe109e28b248a54b8ee583cbae48368c2a7 (patch) | |
| tree | 0c12b075c51c0d5097f26953835ae540d9f2f501 /libgcc/config/avr | |
| parent | 9f62ed218fa656607740b386c0caa03e65dcd283 (diff) | |
| parent | f35be1268c996d993ab0b4ff329734d467474445 (diff) | |
| download | gcc-795cffe109e28b248a54b8ee583cbae48368c2a7.zip gcc-795cffe109e28b248a54b8ee583cbae48368c2a7.tar.gz gcc-795cffe109e28b248a54b8ee583cbae48368c2a7.tar.bz2 | |
Merge from trunk revision f35be1268c996d993ab0b4ff329734d467474445.
Diffstat (limited to 'libgcc/config/avr')
| -rw-r--r-- | libgcc/config/avr/libf7/ChangeLog | 6 | ||||
| -rw-r--r-- | libgcc/config/avr/libf7/libf7-asm.sx | 50 |
2 files changed, 6 insertions, 50 deletions
diff --git a/libgcc/config/avr/libf7/ChangeLog b/libgcc/config/avr/libf7/ChangeLog index d24215e..026dafd 100644 --- a/libgcc/config/avr/libf7/ChangeLog +++ b/libgcc/config/avr/libf7/ChangeLog @@ -1,3 +1,9 @@ +2022-09-19 Georg-Johann Lay <avr@gjlay.de> + + PR target/99184 + * libf7-asm.sx (to_integer, to_unsigned): Don't round 16-bit + and 32-bit integers. + 2020-06-23 David Edelsohn <dje.gcc@gmail.com> * t-libf7: Use -include. diff --git a/libgcc/config/avr/libf7/libf7-asm.sx b/libgcc/config/avr/libf7/libf7-asm.sx index cfdbecd..752a939 100644 --- a/libgcc/config/avr/libf7/libf7-asm.sx +++ b/libgcc/config/avr/libf7/libf7-asm.sx @@ -601,9 +601,6 @@ DEFUN to_integer tst C6 brmi .Lsaturate.T ; > INTxx_MAX => saturate - rcall .Lround - brmi .Lsaturate.T ; > INTxx_MAX => saturate - brtc 9f ; >= 0 => return sbrc Mask, 5 .global __negdi2 @@ -658,30 +655,6 @@ DEFUN to_integer .global __clr_8 XJMP __clr_8 -.Lround: - ;; C6.7 is known to be 0 here. - ;; Return N = 1 iff we have to saturate. - cpi Mask, 0xf - breq .Lround16 - cpi Mask, 0x1f - breq .Lround32 - - ;; For now, no rounding in the 64-bit case. This rounding - ;; would have to be integrated into the right-shift. - cln - ret - -.Lround32: - rol C2 - adc C3, ZERO - adc C4, ZERO - rjmp 2f - -.Lround16: - rol C4 -2: adc C5, ZERO - adc C6, ZERO - ret ENDF to_integer #endif /* F7MOD_to_integer_ */ @@ -725,29 +698,6 @@ DEFUN to_unsigned clr CA F7call lshrdi3 POP r16 - - ;; Rounding - ;; ??? C6.7 is known to be 0 here. - cpi Mask, 0xf - breq .Lround16 - cpi Mask, 0x1f - breq .Lround32 - - ;; For now, no rounding in the 64-bit case. This rounding - ;; would have to be integrated into the right-shift. - ret - -.Lround32: - rol C2 - adc C3, ZERO - adc C4, ZERO - rjmp 2f - -.Lround16: - rol C4 -2: adc C5, ZERO - adc C6, ZERO - brcs .Lset_0xffff ; Rounding overflow => saturate ret .Lset_0xffff: |