Hi,
This patch is to clean up some codes with GET_MODE_UNIT_SIZE or
GET_MODE_NUNITS, which can use known constant instead.
Bootstrapped and regtested on powerpc64le-linux-gnu P9 and
powerpc64-linux-gnu P8.
Is it ok for trunk?
BR,
Kewen
-----
gcc/ChangeLog:
* config/rs6000/altivec.md (altivec_vreveti2): Use known constant
values to simplify code.
* config/rs6000/vsx.md (*vsx_extract_si, *vsx_extract_si_<uns>float_df,
*vsx_extract_si_<uns>float_<mode>, *vsx_insert_extract_v4sf_p9):
Likewise.
---
gcc/config/rs6000/altivec.md | 11 +++--------
gcc/config/rs6000/vsx.md | 8 ++++----
2 files changed, 7 insertions(+), 12 deletions(-)
diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md
index c2312cc1e0f..d5c4ecfa9b7 100644
--- a/gcc/config/rs6000/altivec.md
+++ b/gcc/config/rs6000/altivec.md
@@ -3957,17 +3957,12 @@ (define_expand "altivec_vreveti2"
UNSPEC_VREVEV))]
"TARGET_ALTIVEC"
{
- int i, j, size, num_elements;
+ int i;
rtvec v = rtvec_alloc (16);
rtx mask = gen_reg_rtx (V16QImode);
- size = GET_MODE_UNIT_SIZE (TImode);
- num_elements = GET_MODE_NUNITS (TImode);
-
- for (j = 0; j < num_elements; j++)
- for (i = 0; i < size; i++)
- RTVEC_ELT (v, i + j * size)
- = GEN_INT (i + (num_elements - 1 - j) * size);
+ for (i = 0; i < 16; i++)
+ RTVEC_ELT (v, i) = GEN_INT (i);
emit_insn (gen_vec_initv16qiqi (mask, gen_rtx_PARALLEL (V16QImode, v)));
emit_insn (gen_altivec_vperm_ti (operands[0], operands[1],
diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md
index 802db0d112b..892b99c6d6b 100644
--- a/gcc/config/rs6000/vsx.md
+++ b/gcc/config/rs6000/vsx.md
@@ -3855,7 +3855,7 @@ (define_insn_and_split "*vsx_extract_si"
int value;
if (!BYTES_BIG_ENDIAN)
- element = GEN_INT (GET_MODE_NUNITS (V4SImode) - 1 - INTVAL (element));
+ element = GEN_INT (3 - INTVAL (element));
/* If the value is in the correct position, we can avoid doing the VSPLT<x>
instruction. */
@@ -4231,7 +4231,7 @@ (define_insn_and_split "*vsx_extract_si_<uns>float_df"
int value;
if (!BYTES_BIG_ENDIAN)
- element = GEN_INT (GET_MODE_NUNITS (V4SImode) - 1 - INTVAL (element));
+ element = GEN_INT (3 - INTVAL (element));
/* If the value is in the correct position, we can avoid doing the VSPLT<x>
instruction. */
@@ -4274,7 +4274,7 @@ (define_insn_and_split "*vsx_extract_si_<uns>float_<mode>"
int value;
if (!BYTES_BIG_ENDIAN)
- element = GEN_INT (GET_MODE_NUNITS (V4SImode) - 1 - INTVAL (element));
+ element = GEN_INT (3 - INTVAL (element));
/* If the value is in the correct position, we can avoid doing the VSPLT<x>
instruction. */
@@ -4467,7 +4467,7 @@ (define_insn "*vsx_insert_extract_v4sf_p9"
int ele = INTVAL (operands[4]);
if (!BYTES_BIG_ENDIAN)
- ele = GET_MODE_NUNITS (V4SFmode) - 1 - ele;
+ ele = 3 - ele;
operands[4] = GEN_INT (GET_MODE_SIZE (SFmode) * ele);
return "xxinsertw %x0,%x2,%4";
--
2.27.0
