r239506 - Clang support for vector quad bit permute and gather instructions through builtins
Nemanja Ivanovic
nemanja.i.ibm at gmail.com
Wed Jun 10 23:25:36 PDT 2015
Author: nemanjai
Date: Thu Jun 11 01:25:36 2015
New Revision: 239506
URL: http://llvm.org/viewvc/llvm-project?rev=239506&view=rev
Log:
Clang support for vector quad bit permute and gather instructions through builtins
This patch corresponds to review:
http://reviews.llvm.org/D10095
This is for just two instructions and related builtins:
vbpermq
vgbbd
Modified:
cfe/trunk/include/clang/Basic/BuiltinsPPC.def
cfe/trunk/lib/Headers/altivec.h
cfe/trunk/test/CodeGen/builtins-ppc-p8vector.c
Modified: cfe/trunk/include/clang/Basic/BuiltinsPPC.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/BuiltinsPPC.def?rev=239506&r1=239505&r2=239506&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/BuiltinsPPC.def (original)
+++ cfe/trunk/include/clang/Basic/BuiltinsPPC.def Thu Jun 11 01:25:36 2015
@@ -231,6 +231,9 @@ BUILTIN(__builtin_altivec_vcmpgtsd_p, "i
BUILTIN(__builtin_altivec_vcmpgtud_p, "iiV2ULLiV2ULLi", "")
BUILTIN(__builtin_altivec_vcmpgtfp_p, "iiV4fV4f", "")
+BUILTIN(__builtin_altivec_vgbbd, "V16UcV16Uc", "")
+BUILTIN(__builtin_altivec_vbpermq, "V2ULLiV16UcV16Uc", "")
+
// P8 Crypto built-ins.
BUILTIN(__builtin_altivec_crypto_vsbox, "V2ULLiV2ULLi", "")
BUILTIN(__builtin_altivec_crypto_vpermxor, "V16UcV16UcV16UcV16Uc", "")
Modified: cfe/trunk/lib/Headers/altivec.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/altivec.h?rev=239506&r1=239505&r2=239506&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/altivec.h (original)
+++ cfe/trunk/lib/Headers/altivec.h Thu Jun 11 01:25:36 2015
@@ -12012,6 +12012,29 @@ static vector unsigned long long __ATTRS
vector unsigned long long __a, vector unsigned long long __b) {
return __builtin_altivec_crypto_vpmsumd(__a, __b);
}
+
+static vector signed char __ATTRS_o_ai vec_vgbbd (vector signed char __a)
+{
+ return __builtin_altivec_vgbbd((vector unsigned char) __a);
+}
+
+static vector unsigned char __ATTRS_o_ai vec_vgbbd (vector unsigned char __a)
+{
+ return __builtin_altivec_vgbbd(__a);
+}
+
+static vector long long __ATTRS_o_ai
+vec_vbpermq (vector signed char __a, vector signed char __b)
+{
+ return __builtin_altivec_vbpermq((vector unsigned char) __a,
+ (vector unsigned char) __b);
+}
+
+static vector long long __ATTRS_o_ai
+vec_vbpermq (vector unsigned char __a, vector unsigned char __b)
+{
+ return __builtin_altivec_vbpermq(__a, __b);
+}
#endif
#undef __ATTRS_o_ai
Modified: cfe/trunk/test/CodeGen/builtins-ppc-p8vector.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/builtins-ppc-p8vector.c?rev=239506&r1=239505&r2=239506&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/builtins-ppc-p8vector.c (original)
+++ cfe/trunk/test/CodeGen/builtins-ppc-p8vector.c Thu Jun 11 01:25:36 2015
@@ -3,6 +3,8 @@
// RUN: %clang_cc1 -faltivec -target-feature +power8-vector -triple powerpc64le-unknown-unknown -emit-llvm %s -o - | FileCheck %s -check-prefix=CHECK-LE
// RUN: not %clang_cc1 -faltivec -triple powerpc64-unknown-unknown -emit-llvm %s -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PPC
+vector signed char vsc = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5 };
+vector unsigned char vuc = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5 };
vector int vi = { -1, 2, -3, 4 };
vector unsigned int vui = { 1, 2, 3, 4 };
vector bool int vbi = {0, -1, -1, 0};
@@ -11,6 +13,8 @@ vector signed long long vsll = { 1, 2 };
vector unsigned long long vull = { 1, 2 };
int res_i;
+vector signed char res_vsc;
+vector unsigned char res_vuc;
vector int res_vi;
vector unsigned int res_vui;
vector bool int res_vbi;
@@ -737,4 +741,23 @@ void test1() {
// CHECK: @llvm.ppc.altivec.vminud
// CHECK-LE: @llvm.ppc.altivec.vminud
+ /* vec_vbpermq */
+ res_vsll = vec_vbpermq(vsc, vsc);
+// CHECK: llvm.ppc.altivec.vbpermq
+// CHECK-LE: llvm.ppc.altivec.vbpermq
+
+ res_vull = vec_vbpermq(vuc, vuc);
+// CHECK: llvm.ppc.altivec.vbpermq
+// CHECK-LE: llvm.ppc.altivec.vbpermq
+// CHECK-PPC: warning: implicit declaration of function 'vec_vbpermq'
+
+ /* vec_vgbbd */
+ res_vsc = vec_vgbbd(vsc);
+// CHECK: llvm.ppc.altivec.vgbbd
+// CHECK-LE: llvm.ppc.altivec.vgbbd
+
+ res_vuc = vec_vgbbd(vuc);
+// CHECK: llvm.ppc.altivec.vgbbd
+// CHECK-LE: llvm.ppc.altivec.vgbbd
+// CHECK-PPC: warning: implicit declaration of function 'vec_vgbbd'
}
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