diff options
| author | Georg-Johann Lay <avr@gjlay.de> | 2024-03-06 12:46:25 +0100 |
|---|---|---|
| committer | Georg-Johann Lay <avr@gjlay.de> | 2024-03-06 13:19:04 +0100 |
| commit | b7d14310406a13aaf518c6c34728433077cd545a (patch) | |
| tree | d97701663b2c5403db5a0828124ba74dee36ae60 /gcc | |
| parent | 89c443a7e9a0780a52a698fb02d4f5173e025918 (diff) | |
| download | gcc-b7d14310406a13aaf518c6c34728433077cd545a.zip gcc-b7d14310406a13aaf518c6c34728433077cd545a.tar.gz gcc-b7d14310406a13aaf518c6c34728433077cd545a.tar.bz2 | |
AVR: Adjust rtx cost of plus + zero_extend.
gcc/
* config/avr/avr.cc (avr_rtx_costs_1) [PLUS+ZERO_EXTEND]: Adjust
rtx cost.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/avr/avr.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/config/avr/avr.cc b/gcc/config/avr/avr.cc index 36995e0..b87ae6a 100644 --- a/gcc/config/avr/avr.cc +++ b/gcc/config/avr/avr.cc @@ -12513,6 +12513,13 @@ avr_rtx_costs_1 (rtx x, machine_mode mode, int outer_code, return true; case PLUS: + if (GET_CODE (XEXP (x, 0)) == ZERO_EXTEND + && REG_P (XEXP (x, 1))) + { + *total = COSTS_N_INSNS (GET_MODE_SIZE (mode) - 1); + return true; + } + switch (mode) { case E_QImode: |