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author | Georg-Johann Lay <avr@gjlay.de> | 2024-12-03 15:49:18 +0100 |
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committer | Georg-Johann Lay <avr@gjlay.de> | 2024-12-03 16:06:03 +0100 |
commit | 4114b7fb1cb4cb90b9fafc22213d7d9579bc19e0 (patch) | |
tree | 540647b93af4a002f8f4d00fd74ee4f54c956448 /gcc/config/avr | |
parent | f3b5de944ad6d1f6a10f819b816c2ba234ecd8c0 (diff) | |
download | gcc-4114b7fb1cb4cb90b9fafc22213d7d9579bc19e0.zip gcc-4114b7fb1cb4cb90b9fafc22213d7d9579bc19e0.tar.gz gcc-4114b7fb1cb4cb90b9fafc22213d7d9579bc19e0.tar.bz2 |
AVR: ad target/117726 - Also split logic shifts of bitsize - 1.
When -msplit-bit-shift is on, also split logic shifts of bitsize(mode) - 1.
gcc/
PR target/117726
* config/avr/avr-passes.cc (avr_split_shift_p)
[ASHIFT, LSHIFTRT]: Allow offsets of bitsize - 1.
(avr_split_shift4) [ASHIFT, LSHIFTRT]: Also split offset 31.
(avr_split_shift3) [ASHIFT, LSHIFTRT]: Also split offset 23.
(avr_split_shift2) [ASHIFT, LSHIFTRT]: Also split offset 15.
Diffstat (limited to 'gcc/config/avr')
-rw-r--r-- | gcc/config/avr/avr-passes.cc | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/gcc/config/avr/avr-passes.cc b/gcc/config/avr/avr-passes.cc index dc98780..076d8cb 100644 --- a/gcc/config/avr/avr-passes.cc +++ b/gcc/config/avr/avr-passes.cc @@ -4860,23 +4860,23 @@ avr_split_shift_p (int n_bytes, int offset, rtx_code code) if (n_bytes == 4) return select<bool>() - : code == ASHIFT ? IN_RANGE (offset, 9, 30) && offset != 15 + : code == ASHIFT ? IN_RANGE (offset, 9, 31) && offset != 15 : code == ASHIFTRT ? IN_RANGE (offset, 9, 29) && offset != 15 - : code == LSHIFTRT ? IN_RANGE (offset, 9, 30) && offset != 15 + : code == LSHIFTRT ? IN_RANGE (offset, 9, 31) && offset != 15 : bad_case<bool> (); if (n_bytes == 3) return select<bool>() - : code == ASHIFT ? IN_RANGE (offset, 9, 22) && offset != 15 + : code == ASHIFT ? IN_RANGE (offset, 9, 23) && offset != 15 : code == ASHIFTRT ? IN_RANGE (offset, 9, 21) && offset != 15 - : code == LSHIFTRT ? IN_RANGE (offset, 9, 22) && offset != 15 + : code == LSHIFTRT ? IN_RANGE (offset, 9, 23) && offset != 15 : bad_case<bool> (); if (n_bytes == 2) return select<bool>() - : code == ASHIFT ? IN_RANGE (offset, 9, 14) + : code == ASHIFT ? IN_RANGE (offset, 9, 15) : code == ASHIFTRT ? IN_RANGE (offset, 9, 13) - : code == LSHIFTRT ? IN_RANGE (offset, 9, 14) + : code == LSHIFTRT ? IN_RANGE (offset, 9, 15) : bad_case<bool> (); return false; @@ -4955,7 +4955,7 @@ avr_split_shift4 (rtx dest, rtx src, int ioff, rtx scratch, rtx_code code) if (code == ASHIFT) { - if (IN_RANGE (ioff, 25, 30)) + if (IN_RANGE (ioff, 25, 31)) { rtx dst8 = avr_byte (dest, 3); rtx src8 = avr_byte (src, 0); @@ -4978,7 +4978,7 @@ avr_split_shift4 (rtx dest, rtx src, int ioff, rtx scratch, rtx_code code) else if (code == ASHIFTRT || code == LSHIFTRT) { - if (IN_RANGE (ioff, 25, 30)) + if (IN_RANGE (ioff, 25, 30 + (code == LSHIFTRT))) { rtx dst8 = avr_byte (dest, 0); rtx src8 = avr_byte (src, 3); @@ -5042,7 +5042,7 @@ avr_split_shift3 (rtx dest, rtx src, int ioff, rtx scratch, rtx_code code) if (code == ASHIFT) { - if (IN_RANGE (ioff, 17, 22)) + if (IN_RANGE (ioff, 17, 23)) { rtx dst8 = avr_byte (dest, 2); rtx src8 = avr_byte (src, 0); @@ -5056,7 +5056,7 @@ avr_split_shift3 (rtx dest, rtx src, int ioff, rtx scratch, rtx_code code) else if (code == ASHIFTRT || code == LSHIFTRT) { - if (IN_RANGE (ioff, 17, 22)) + if (IN_RANGE (ioff, 17, 22 + (code == LSHIFTRT))) { rtx dst8 = avr_byte (dest, 0); rtx src8 = avr_byte (src, 2); @@ -5102,7 +5102,7 @@ avr_split_shift2 (rtx dest, rtx src, int ioff, rtx /*scratch*/, rtx_code code) if (code == ASHIFT) { - if (IN_RANGE (ioff, 9, 14)) + if (IN_RANGE (ioff, 9, 15)) { rtx dst8 = avr_byte (dest, 1); rtx src8 = avr_byte (src, 0); @@ -5114,7 +5114,7 @@ avr_split_shift2 (rtx dest, rtx src, int ioff, rtx /*scratch*/, rtx_code code) else if (code == ASHIFTRT || code == LSHIFTRT) { - if (IN_RANGE (ioff, 9, 14)) + if (IN_RANGE (ioff, 9, 14 + (code == LSHIFTRT))) { rtx dst8 = avr_byte (dest, 0); rtx src8 = avr_byte (src, 1); |