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| author | Jiahao Xu <xujiahao@loongson.cn> | 2023-12-14 20:49:04 +0800 |
|---|---|---|
| committer | Lulu Cheng <chenglulu@loongson.cn> | 2023-12-21 17:21:11 +0800 |
| commit | 92045913b23db7fde7b686dac519359b58d35e5a (patch) | |
| tree | a08e29c40eb7061228221e929c29b117d41e7095 | |
| parent | 140aa2cdf93c7729e362b09534535395357183f0 (diff) | |
| download | gcc-92045913b23db7fde7b686dac519359b58d35e5a.zip gcc-92045913b23db7fde7b686dac519359b58d35e5a.tar.gz gcc-92045913b23db7fde7b686dac519359b58d35e5a.tar.bz2 | |
LoongArch: Fix incorrect code generation for sad pattern
When I attempt to enable vect_usad_char effective target for LoongArch, slp-reduc-sad.c
and vect-reduc-sad*.c tests fail. These tests fail because the sad pattern generates bad
code. This patch to fixed them, for sad patterns, use zero expansion instead of sign
expansion for reduction.
Currently, we are fixing failed vectorized tests, and in the future, we will
enable more tests of "vect" for LoongArch.
gcc/ChangeLog:
* config/loongarch/lasx.md: Use zero expansion instruction.
* config/loongarch/lsx.md: Ditto.
| -rw-r--r-- | gcc/config/loongarch/lasx.md | 8 | ||||
| -rw-r--r-- | gcc/config/loongarch/lsx.md | 8 |
2 files changed, 8 insertions, 8 deletions
diff --git a/gcc/config/loongarch/lasx.md b/gcc/config/loongarch/lasx.md index 921ce0e..9ca3f92 100644 --- a/gcc/config/loongarch/lasx.md +++ b/gcc/config/loongarch/lasx.md @@ -5021,8 +5021,8 @@ rtx t2 = gen_reg_rtx (V16HImode); rtx t3 = gen_reg_rtx (V8SImode); emit_insn (gen_lasx_xvabsd_u_bu (t1, operands[1], operands[2])); - emit_insn (gen_lasx_xvhaddw_h_b (t2, t1, t1)); - emit_insn (gen_lasx_xvhaddw_w_h (t3, t2, t2)); + emit_insn (gen_lasx_xvhaddw_hu_bu (t2, t1, t1)); + emit_insn (gen_lasx_xvhaddw_wu_hu (t3, t2, t2)); emit_insn (gen_addv8si3 (operands[0], t3, operands[3])); DONE; }) @@ -5038,8 +5038,8 @@ rtx t2 = gen_reg_rtx (V16HImode); rtx t3 = gen_reg_rtx (V8SImode); emit_insn (gen_lasx_xvabsd_s_b (t1, operands[1], operands[2])); - emit_insn (gen_lasx_xvhaddw_h_b (t2, t1, t1)); - emit_insn (gen_lasx_xvhaddw_w_h (t3, t2, t2)); + emit_insn (gen_lasx_xvhaddw_hu_bu (t2, t1, t1)); + emit_insn (gen_lasx_xvhaddw_wu_hu (t3, t2, t2)); emit_insn (gen_addv8si3 (operands[0], t3, operands[3])); DONE; }) diff --git a/gcc/config/loongarch/lsx.md b/gcc/config/loongarch/lsx.md index 57e0ee3..7f5fff4 100644 --- a/gcc/config/loongarch/lsx.md +++ b/gcc/config/loongarch/lsx.md @@ -3385,8 +3385,8 @@ rtx t2 = gen_reg_rtx (V8HImode); rtx t3 = gen_reg_rtx (V4SImode); emit_insn (gen_lsx_vabsd_u_bu (t1, operands[1], operands[2])); - emit_insn (gen_lsx_vhaddw_h_b (t2, t1, t1)); - emit_insn (gen_lsx_vhaddw_w_h (t3, t2, t2)); + emit_insn (gen_lsx_vhaddw_hu_bu (t2, t1, t1)); + emit_insn (gen_lsx_vhaddw_wu_hu (t3, t2, t2)); emit_insn (gen_addv4si3 (operands[0], t3, operands[3])); DONE; }) @@ -3402,8 +3402,8 @@ rtx t2 = gen_reg_rtx (V8HImode); rtx t3 = gen_reg_rtx (V4SImode); emit_insn (gen_lsx_vabsd_s_b (t1, operands[1], operands[2])); - emit_insn (gen_lsx_vhaddw_h_b (t2, t1, t1)); - emit_insn (gen_lsx_vhaddw_w_h (t3, t2, t2)); + emit_insn (gen_lsx_vhaddw_hu_bu (t2, t1, t1)); + emit_insn (gen_lsx_vhaddw_wu_hu (t3, t2, t2)); emit_insn (gen_addv4si3 (operands[0], t3, operands[3])); DONE; }) |