[4/13] rs6000, extend the current vec_{un,}signed{e,o} built-ins
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Commit Message
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 signed/unsigned long long ints. Extend the
existing vec_{un,}signed{e,o} built-ins to handle the argument
vector of floats to return the even/odd signed/unsigned integers.
Add testcases and update documentation.
gcc/ChangeLog:
* config/rs6000/rs6000-builtins.def (__builtin_vsx_xvcvspsxds_low,
__builtin_vsx_xvcvspuxds_low): New built-in definitions.
* config/rs6000/rs6000-overload.def (vec_signede, vec_signedo):
Add new overloaded specifications.
* config/rs6000/vsx.md (vsx_xvcvsp<su>xds_low): New define_expand.
* doc/extend.texi (vec_signedo, vec_signede): Add documentation.
gcc/testsuite/ChangeLog:
* gcc.target/powerpc/builtins-3-runnable: New tests for the added
overloaded built-ins.
---
gcc/config/rs6000/rs6000-builtins.def | 6 ++++++
gcc/config/rs6000/rs6000-overload.def | 8 ++++++++
gcc/config/rs6000/vsx.md | 23 +++++++++++++++++++++++
gcc/doc/extend.texi | 13 +++++++++++++
4 files changed, 50 insertions(+)
@@ -1709,9 +1709,15 @@
const vsll __builtin_vsx_xvcvspsxds (vf);
XVCVSPSXDS vsx_xvcvspsxds {}
+ const vsll __builtin_vsx_xvcvspsxds_low (vf);
+ XVCVSPSXDSO vsx_xvcvspsxds_low {}
+
const vsll __builtin_vsx_xvcvspuxds (vf);
XVCVSPUXDS vsx_xvcvspuxds {}
+ const vsll __builtin_vsx_xvcvspuxds_low (vf);
+ XVCVSPUXDSO vsx_xvcvspuxds_low {}
+
const vsi __builtin_vsx_xvcvspuxws (vf);
XVCVSPUXWS vsx_fixuns_truncv4sfv4si2 {}
@@ -3307,10 +3307,14 @@
[VEC_SIGNEDE, vec_signede, __builtin_vec_vsignede]
vsi __builtin_vec_vsignede (vd);
VEC_VSIGNEDE_V2DF
+ vsll __builtin_vec_vsignede (vf);
+ XVCVSPSXDS
[VEC_SIGNEDO, vec_signedo, __builtin_vec_vsignedo]
vsi __builtin_vec_vsignedo (vd);
VEC_VSIGNEDO_V2DF
+ vsll __builtin_vec_vsignedo (vf);
+ XVCVSPSXDSO
[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);
+ XVCVSPUXDS
[VEC_UNSIGNEDO, vec_unsignedo, __builtin_vec_vunsignedo]
vui __builtin_vec_vunsignedo (vd);
VEC_VUNSIGNEDO_V2DF
+ vull __builtin_vec_vunsignedo (vf);
+ XVCVSPUXDSO
[VEC_VEE, vec_extract_exp, __builtin_vec_extract_exp]
vui __builtin_vec_extract_exp (vf);
@@ -2704,6 +2704,29 @@
DONE;
})
+;; Convert low vector elements of 32-bit floating point numbers to vector of
+;; 64-bit signed/unsigned integers.
+(define_expand "vsx_xvcvsp<su>xds_low"
+ [(match_operand:V2DI 0 "vsx_register_operand")
+ (match_operand:V4SF 1 "vsx_register_operand")
+ (any_fix (pc))]
+ "VECTOR_UNIT_VSX_P (V2DFmode)"
+{
+ /* Shift left one word to put even word in correct location */
+ rtx rtx_tmp;
+ rtx rtx_val = GEN_INT (4);
+ rtx_tmp = gen_reg_rtx (V4SFmode);
+ emit_insn (gen_altivec_vsldoi_v4sf (rtx_tmp, operands[1], operands[1],
+ rtx_val));
+
+ if (BYTES_BIG_ENDIAN)
+ emit_insn (gen_vsx_xvcvsp<su>xds_be (operands[0], rtx_tmp));
+ else
+ emit_insn (gen_vsx_xvcvsp<su>xds_le (operands[0], rtx_tmp));
+
+ DONE;
+})
+
;; Generate float2 double
;; convert two double to float
(define_expand "float2_v2df"
@@ -22552,6 +22552,19 @@ can use @var{vector long} instead of @var{vector long long},
@var{vector bool long} instead of @var{vector bool long long}, and
@var{vector unsigned long} instead of @var{vector unsigned long long}.
+@smallexample
+vector signed signed long long vec_signedo (vector float);
+vector signed signed long long vec_signede (vector float);
+vector unsigned signed long long vec_signedo (vector float);
+vector unsigned signed long long vec_signede (vector float);
+@end smallexample
+
+The overloaded built-ins @code{vec_signedo} and @code{vec_signede} convert the
+even/odd input vector elements to signed/unsigned long long integer values in
+addition to the supported arguments and return types documented in the PVIPR.
+Negative input values are returned as zero for the unsigned long long return
+values.
+
Only functions excluded from the PVIPR are listed here.
@smallexample