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[PowerPC] Enable vec_perm for long long and double vector types for VSX 

VSX makes the "vector long long" and "vector double" types available.
This patch enables the vec_perm interface for these types.  The same
builtin is generated regardless of the specified type, so no
additional work or testing is needed in the back end.  Tests are added
to ensure this builtin is generated by the front end.

llvm-svn: 221988
This commit is contained in:
Bill Schmidt 2014-11-14 13:10:13 +00:00
parent 6c22c44e12
commit 8ff672d397
2 changed files with 88 additions and 0 deletions
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67
clang/lib/Headers/altivec.h
View File

@ -4902,6 +4902,52 @@ vec_perm(vector float __a, vector float __b, vector unsigned char __c)
#endif
}
#ifdef __VSX__
vector long long __ATTRS_o_ai
vec_perm(vector long long __a, vector long long __b, vector unsigned char __c)
{
#ifdef __LITTLE_ENDIAN__
vector unsigned char __d = {255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255};
__d = vec_xor(__c, __d);
return (vector long long)__builtin_altivec_vperm_4si(__b, __a, __d);
#else
return (vector long long)__builtin_altivec_vperm_4si(__a, __b, __c);
#endif
}
vector unsigned long long __ATTRS_o_ai
vec_perm(vector unsigned long long __a, vector unsigned long long __b,
vector unsigned char __c)
{
#ifdef __LITTLE_ENDIAN__
vector unsigned char __d = {255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255};
__d = vec_xor(__c, __d);
return (vector unsigned long long)
__builtin_altivec_vperm_4si((vector int)__b, (vector int)__a, __d);
#else
return (vector unsigned long long)
__builtin_altivec_vperm_4si((vector int)__a, (vector int)__b, __c);
#endif
}
vector double __ATTRS_o_ai
vec_perm(vector double __a, vector double __b, vector unsigned char __c)
{
#ifdef __LITTLE_ENDIAN__
vector unsigned char __d = {255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255};
__d = vec_xor(__c, __d);
return (vector double)
__builtin_altivec_vperm_4si((vector int)__b, (vector int)__a, __d);
#else
return (vector double)
__builtin_altivec_vperm_4si((vector int)__a, (vector int)__b, __c);
#endif
}
#endif
/* vec_vperm */
static vector signed char __ATTRS_o_ai
@ -4974,6 +5020,27 @@ vec_vperm(vector float __a, vector float __b, vector unsigned char __c)
return vec_perm(__a, __b, __c);
}
#ifdef __VSX__
static vector long long __ATTRS_o_ai
vec_vperm(vector long long __a, vector long long __b, vector unsigned char __c)
{
return vec_perm(__a, __b, __c);
}
static vector unsigned long long __ATTRS_o_ai
vec_vperm(vector unsigned long long __a, vector unsigned long long __b,
vector unsigned char __c)
{
return vec_perm(__a, __b, __c);
}
static vector double __ATTRS_o_ai
vec_vperm(vector double __a, vector double __b, vector unsigned char __c)
{
return vec_perm(__a, __b, __c);
}
#endif
/* vec_re */
static vector float __attribute__((__always_inline__))

21
clang/test/CodeGen/builtins-ppc-vsx.c
View File

@ -1,6 +1,8 @@
// REQUIRES: powerpc-registered-target
// RUN: %clang_cc1 -faltivec -target-feature +vsx -triple powerpc64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
vector unsigned char vuc = { 8, 9, 10, 11, 12, 13, 14, 15,
0, 1, 2, 3, 4, 5, 6, 7};
vector float vf = { -1.5, 2.5, -3.5, 4.5 };
vector double vd = { 3.5, -7.5 };
vector signed int vsi = { -1, 2, -3, 4 };
@ -53,6 +55,25 @@ void test1() {
res_d = __builtin_vsx_xsmindp(d, d);
// CHECK: @llvm.ppc.vsx.xsmindp
/* vec_perm */
res_vsll = vec_perm(vsll, vsll, vuc);
// CHECK: @llvm.ppc.altivec.vperm
res_vull = vec_perm(vull, vull, vuc);
// CHECK: @llvm.ppc.altivec.vperm
res_vd = vec_perm(vd, vd, vuc);
// CHECK: @llvm.ppc.altivec.vperm
res_vsll = vec_vperm(vsll, vsll, vuc);
// CHECK: @llvm.ppc.altivec.vperm
res_vull = vec_vperm(vull, vull, vuc);
// CHECK: @llvm.ppc.altivec.vperm
res_vd = vec_vperm(vd, vd, vuc);
// CHECK: @llvm.ppc.altivec.vperm
/* vec_vsx_ld */
res_vsi = vec_vsx_ld(0, &vsi);