https://gcc.gnu.org/g:b620845fff7d38bca3b79ca9f5a5d049eba9e7f8
commit r15-1918-gb620845fff7d38bca3b79ca9f5a5d049eba9e7f8
Author: Carl Love <c...@linux.ibm.com>
Date: Tue Jul 9 13:17:44 2024 -0400
rs6000, extend the current vec_{un,}signed{e,o} built-ins
The built-ins __builtin_vsx_xvcvspsxds and __builtin_vsx_xvcvspuxds
convert a vector of floats to a vector of signed/unsigned long long ints.
Extend the existing vec_{un,}signed{e,o} built-ins to handle the argument
vector of floats to return a vector of even/odd signed/unsigned integers.
The define expands vsignede_v4sf, vsignedo_v4sf, vunsignede_v4sf,
vunsignedo_v4sf are added to support the new vec_{un,}signed{e,o}
built-ins.
The built-ins __builtin_vsx_xvcvspsxds and __builtin_vsx_xvcvspuxds are
now for internal use only. They are not documented and they do not
have test cases.
Add testcases and update documentation.
gcc/ChangeLog:
* config/rs6000/rs6000-builtins.def (__builtin_vsx_xvcvspsxds,
__builtin_vsx_xvcvspuxds): Rename to __builtin_vsignede_v4sf,
__builtin_vunsignede_v4sf respectively.
(XVCVSPSXDS, XVCVSPUXDS): Rename to VEC_VSIGNEDE_V4SF,
VEC_VUNSIGNEDE_V4SF respectively.
(__builtin_vsignedo_v4sf, __builtin_vunsignedo_v4sf): New
built-in definitions.
* config/rs6000/rs6000-overload.def (vec_signede, vec_signedo,
vec_unsignede, vec_unsignedo): Add new overloaded specifications.
* config/rs6000/vsx.md (vsignede_v4sf, vsignedo_v4sf,
vunsignede_v4sf, vunsignedo_v4sf): New define_expands.
* doc/extend.texi (vec_signedo, vec_signede, vec_unsignedo,
vec_unsignede): Add documentation for new overloaded built-ins to
convert vector float to vector {un,}signed long long.
gcc/testsuite/ChangeLog:
* gcc.target/powerpc/builtins-3-runnable.c
(test_unsigned_int_result, test_ll_unsigned_int_result): Add
new argument.
(vec_signede, vec_signedo, vec_unsignede, vec_unsignedo): New
tests for the overloaded built-ins.
Diff:
---
gcc/config/rs6000/rs6000-builtins.def | 14 ++--
gcc/config/rs6000/rs6000-overload.def | 8 +++
gcc/config/rs6000/vsx.md | 84 ++++++++++++++++++++++
gcc/doc/extend.texi | 10 +++
.../gcc.target/powerpc/builtins-3-runnable.c | 49 +++++++++++--
5 files changed, 154 insertions(+), 11 deletions(-)
diff --git a/gcc/config/rs6000/rs6000-builtins.def
b/gcc/config/rs6000/rs6000-builtins.def
index f0aee29f1a1d..5f353f5faeb2 100644
--- a/gcc/config/rs6000/rs6000-builtins.def
+++ b/gcc/config/rs6000/rs6000-builtins.def
@@ -1697,11 +1697,17 @@
const vd __builtin_vsx_xvcvspdp (vf);
XVCVSPDP vsx_xvcvspdp {}
- const vsll __builtin_vsx_xvcvspsxds (vf);
- XVCVSPSXDS vsx_xvcvspsxds {}
+ const vsll __builtin_vsignede_v4sf (vf);
+ VEC_VSIGNEDE_V4SF vsignede_v4sf {}
- const vsll __builtin_vsx_xvcvspuxds (vf);
- XVCVSPUXDS vsx_xvcvspuxds {}
+ const vsll __builtin_vsignedo_v4sf (vf);
+ VEC_VSIGNEDO_V4SF vsignedo_v4sf {}
+
+ const vull __builtin_vunsignede_v4sf (vf);
+ VEC_VUNSIGNEDE_V4SF vunsignede_v4sf {}
+
+ const vull __builtin_vunsignedo_v4sf (vf);
+ VEC_VUNSIGNEDO_V4SF vunsignedo_v4sf {}
const vd __builtin_vsx_xvcvsxddp (vsll);
XVCVSXDDP vsx_floatv2div2df2 {}
diff --git a/gcc/config/rs6000/rs6000-overload.def
b/gcc/config/rs6000/rs6000-overload.def
index 84bd9ae6554a..4d857bb1af3e 100644
--- a/gcc/config/rs6000/rs6000-overload.def
+++ b/gcc/config/rs6000/rs6000-overload.def
@@ -3307,10 +3307,14 @@
[VEC_SIGNEDE, vec_signede, __builtin_vec_vsignede]
vsi __builtin_vec_vsignede (vd);
VEC_VSIGNEDE_V2DF
+ vsll __builtin_vec_vsignede (vf);
+ VEC_VSIGNEDE_V4SF
[VEC_SIGNEDO, vec_signedo, __builtin_vec_vsignedo]
vsi __builtin_vec_vsignedo (vd);
VEC_VSIGNEDO_V2DF
+ vsll __builtin_vec_vsignedo (vf);
+ VEC_VSIGNEDO_V4SF
[VEC_SIGNEXTI, vec_signexti, __builtin_vec_signexti]
vsi __builtin_vec_signexti (vsc);
@@ -4433,10 +4437,14 @@
[VEC_UNSIGNEDE, vec_unsignede, __builtin_vec_vunsignede]
vui __builtin_vec_vunsignede (vd);
VEC_VUNSIGNEDE_V2DF
+ vull __builtin_vec_vunsignede (vf);
+ VEC_VUNSIGNEDE_V4SF
[VEC_UNSIGNEDO, vec_unsignedo, __builtin_vec_vunsignedo]
vui __builtin_vec_vunsignedo (vd);
VEC_VUNSIGNEDO_V2DF
+ vull __builtin_vec_vunsignedo (vf);
+ VEC_VUNSIGNEDO_V4SF
[VEC_VEE, vec_extract_exp, __builtin_vec_extract_exp]
vui __builtin_vec_extract_exp (vf);
diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md
index 23ce5c740510..8001d1778b89 100644
--- a/gcc/config/rs6000/vsx.md
+++ b/gcc/config/rs6000/vsx.md
@@ -2704,6 +2704,90 @@
DONE;
})
+;; Convert float vector even elements to signed long long vector
+(define_expand "vsignede_v4sf"
+ [(match_operand:V2DI 0 "vsx_register_operand")
+ (match_operand:V4SF 1 "vsx_register_operand")]
+ "VECTOR_UNIT_VSX_P (V2DFmode)"
+{
+ if (BYTES_BIG_ENDIAN)
+ emit_insn (gen_vsx_xvcvspsxds_be (operands[0], operands[1]));
+ else
+ {
+ /* Shift left one word to put even word in correct location. */
+ rtx rtx_tmp = gen_reg_rtx (V4SFmode);
+ rtx rtx_val = GEN_INT (4);
+ emit_insn (gen_altivec_vsldoi_v4sf (rtx_tmp, operands[1], operands[1],
+ rtx_val));
+ emit_insn (gen_vsx_xvcvspsxds_le (operands[0], rtx_tmp));
+ }
+
+ DONE;
+})
+
+;; Convert float vector odd elements to signed long long vector
+(define_expand "vsignedo_v4sf"
+ [(match_operand:V2DI 0 "vsx_register_operand")
+ (match_operand:V4SF 1 "vsx_register_operand")]
+ "VECTOR_UNIT_VSX_P (V2DFmode)"
+{
+ if (BYTES_BIG_ENDIAN)
+ {
+ /* Shift left one word to put even word in correct location. */
+ rtx rtx_tmp = gen_reg_rtx (V4SFmode);
+ rtx rtx_val = GEN_INT (4);
+ emit_insn (gen_altivec_vsldoi_v4sf (rtx_tmp, operands[1], operands[1],
+ rtx_val));
+ emit_insn (gen_vsx_xvcvspsxds_be (operands[0], rtx_tmp));
+ }
+ else
+ emit_insn (gen_vsx_xvcvspsxds_le (operands[0], operands[1]));
+
+ DONE;
+})
+
+;; Convert float vector of even vector elements to unsigned long long vector
+(define_expand "vunsignede_v4sf"
+ [(match_operand:V2DI 0 "vsx_register_operand")
+ (match_operand:V4SF 1 "vsx_register_operand")]
+ "VECTOR_UNIT_VSX_P (V2DFmode)"
+{
+ if (BYTES_BIG_ENDIAN)
+ emit_insn (gen_vsx_xvcvspuxds_be (operands[0], operands[1]));
+ else
+ {
+ /* Shift left one word to put even word in correct location. */
+ rtx rtx_tmp = gen_reg_rtx (V4SFmode);
+ rtx rtx_val = GEN_INT (4);
+ emit_insn (gen_altivec_vsldoi_v4sf (rtx_tmp, operands[1], operands[1],
+ rtx_val));
+ emit_insn (gen_vsx_xvcvspuxds_le (operands[0], rtx_tmp));
+ }
+
+ DONE;
+})
+
+;; Convert float vector of odd elements to unsigned long long vector
+(define_expand "vunsignedo_v4sf"
+ [(match_operand:V2DI 0 "vsx_register_operand")
+ (match_operand:V4SF 1 "vsx_register_operand")]
+ "VECTOR_UNIT_VSX_P (V2DFmode)"
+{
+ if (BYTES_BIG_ENDIAN)
+ {
+ /* Shift left one word to put even word in correct location. */
+ rtx rtx_tmp = gen_reg_rtx (V4SFmode);
+ rtx rtx_val = GEN_INT (4);
+ emit_insn (gen_altivec_vsldoi_v4sf (rtx_tmp, operands[1], operands[1],
+ rtx_val));
+ emit_insn (gen_vsx_xvcvspuxds_be (operands[0], rtx_tmp));
+ }
+ else
+ emit_insn (gen_vsx_xvcvspuxds_le (operands[0], operands[1]));
+
+ DONE;
+})
+
;; Generate float2 double
;; convert two double to float
(define_expand "float2_v2df"
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index b2e41a581dd1..98e3966662ae 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -22649,6 +22649,16 @@ if the VSX instruction set is available. The
@samp{vec_vsx_ld} and
@samp{vec_vsx_st} built-in functions always generate the VSX @samp{LXVD2X},
@samp{LXVW4X}, @samp{STXVD2X}, and @samp{STXVW4X} instructions.
+@smallexample
+vector signed long long vec_signedo (vector float);
+vector signed long long vec_signede (vector float);
+vector unsigned long long vec_unsignedo (vector float);
+vector unsigned long long vec_unsignede (vector float);
+@end smallexample
+
+The overloaded built-ins @code{vec_signedo} and @code{vec_signede} are
+additional extensions to the built-ins as documented in the PVIPR.
+
@node PowerPC AltiVec Built-in Functions Available on ISA 2.07
@subsubsection PowerPC AltiVec Built-in Functions Available on ISA 2.07
diff --git a/gcc/testsuite/gcc.target/powerpc/builtins-3-runnable.c
b/gcc/testsuite/gcc.target/powerpc/builtins-3-runnable.c
index 5dcdfbee7916..5c2481dd6128 100644
--- a/gcc/testsuite/gcc.target/powerpc/builtins-3-runnable.c
+++ b/gcc/testsuite/gcc.target/powerpc/builtins-3-runnable.c
@@ -81,14 +81,15 @@ void test_unsigned_int_result(int check, vector unsigned
int vec_result,
}
void test_ll_int_result(vector long long int vec_result,
- vector long long int vec_expected)
+ vector long long int vec_expected,
+ char *string)
{
int i;
for (i = 0; i < 2; i++)
if (vec_result[i] != vec_expected[i]) {
#ifdef DEBUG
- printf("Test_ll_int_result: ");
+ printf("Test_ll_int_result %s: ", string);
printf("vec_result[%d] (%lld) != vec_expected[%d]
(%lld)\n",
i, vec_result[i], i, vec_expected[i]);
#else
@@ -98,14 +99,15 @@ void test_ll_int_result(vector long long int vec_result,
}
void test_ll_unsigned_int_result(vector long long unsigned int vec_result,
- vector long long unsigned int vec_expected)
+ vector long long unsigned int vec_expected,
+ char *string)
{
int i;
for (i = 0; i < 2; i++)
if (vec_result[i] != vec_expected[i]) {
#ifdef DEBUG
- printf("Test_ll_unsigned_int_result: ");
+ printf("Test_ll_unsigned_int_result %s: ", string);
printf("vec_result[%d] (%lld) != vec_expected[%d]
(%lld)\n",
i, vec_result[i], i, vec_expected[i]);
#else
@@ -292,7 +294,8 @@ int main()
vec_dble0 = (vector double){-124.930, 81234.49};
vec_ll_int_expected = (vector long long signed int){-124, 81234};
vec_ll_int_result = vec_signed (vec_dble0);
- test_ll_int_result (vec_ll_int_result, vec_ll_int_expected);
+ test_ll_int_result (vec_ll_int_result, vec_ll_int_expected,
+ "vec_signed");
/* Convert double precision vector float to vector int, even words */
vec_dble0 = (vector double){-124.930, 81234.49};
@@ -321,12 +324,44 @@ int main()
test_unsigned_int_result (ALL, vec_uns_int_result,
vec_uns_int_expected);
+ /* Convert single precision vector float, even args, to vector
+ signed long long int. */
+ vec_flt0 = (vector float){14.930, 834.49, -3.3, -5.4};
+ vec_ll_int_expected = (vector signed long long int){14, -3};
+ vec_ll_int_result = vec_signede (vec_flt0);
+ test_ll_int_result (vec_ll_int_result, vec_ll_int_expected,
+ "vec_signede");
+
+ /* Convert single precision vector float, odd args, to vector
+ signed long long int. */
+ vec_flt0 = (vector float){14.930, 834.49, -3.3, -5.4};
+ vec_ll_int_expected = (vector signed long long int){834, -5};
+ vec_ll_int_result = vec_signedo (vec_flt0);
+ test_ll_int_result (vec_ll_int_result, vec_ll_int_expected,
+ "vec_signedo");
+
+ /* Convert single precision vector float, even args, to vector
+ unsigned long long int. */
+ vec_flt0 = (vector float){14.930, 834.49, -3.3, -5.4};
+ vec_ll_uns_int_expected = (vector unsigned long long int){14, 0};
+ vec_ll_uns_int_result = vec_unsignede (vec_flt0);
+ test_ll_unsigned_int_result (vec_ll_uns_int_result,
+ vec_ll_uns_int_expected, "vec_unsignede");
+
+ /* Convert single precision vector float, odd args, to vector
+ unsigned long long int. */
+ vec_flt0 = (vector float){14.930, 834.49, -3.3, -5.4};
+ vec_ll_uns_int_expected = (vector unsigned long long int){834, 0};
+ vec_ll_uns_int_result = vec_unsignedo (vec_flt0);
+ test_ll_unsigned_int_result (vec_ll_uns_int_result,
+ vec_ll_uns_int_expected, "vec_unsignedo");
+
/* Convert double precision float to long long unsigned int */
vec_dble0 = (vector double){124.930, 8134.49};
vec_ll_uns_int_expected = (vector long long unsigned int){124, 8134};
vec_ll_uns_int_result = vec_unsigned (vec_dble0);
test_ll_unsigned_int_result (vec_ll_uns_int_result,
- vec_ll_uns_int_expected);
+ vec_ll_uns_int_expected, "vec_unsigned");
/* Convert double precision float to long long unsigned int. Negative
arguments. */
@@ -334,7 +369,7 @@ int main()
vec_ll_uns_int_expected = (vector long long unsigned int){0, 0};
vec_ll_uns_int_result = vec_unsigned (vec_dble0);
test_ll_unsigned_int_result (vec_ll_uns_int_result,
- vec_ll_uns_int_expected);
+ vec_ll_uns_int_expected, "vec_unsigned");
/* Convert double precision vector float to vector unsigned int,
even words. Negative arguments */
