[PATCH] D110934: [NFC] Update return type of vec_popcnt to vector unsigned.

Amy Kwan via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Fri Oct 1 07:21:20 PDT 2021


amyk created this revision.
amyk added reviewers: PowerPC, nemanjai, stefanp.
amyk added projects: LLVM, PowerPC, clang.
amyk requested review of this revision.

This patch updates the vec_popcnt builtins to take a signed int as the second 
parameter, as defined by the Power Vector Intrinsics Programming Reference.
This patch is NFC and all existing tests pass.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D110934

Files:
  clang/lib/Headers/altivec.h


Index: clang/lib/Headers/altivec.h
===================================================================
--- clang/lib/Headers/altivec.h
+++ clang/lib/Headers/altivec.h
@@ -2482,7 +2482,7 @@
 #ifdef __POWER8_VECTOR__
 /* vec_popcnt */
 
-static __inline__ vector signed char __ATTRS_o_ai
+static __inline__ vector unsigned char __ATTRS_o_ai
 vec_popcnt(vector signed char __a) {
   return __builtin_altivec_vpopcntb(__a);
 }
@@ -2490,7 +2490,7 @@
 vec_popcnt(vector unsigned char __a) {
   return __builtin_altivec_vpopcntb(__a);
 }
-static __inline__ vector signed short __ATTRS_o_ai
+static __inline__ vector unsigned short __ATTRS_o_ai
 vec_popcnt(vector signed short __a) {
   return __builtin_altivec_vpopcnth(__a);
 }
@@ -2498,7 +2498,7 @@
 vec_popcnt(vector unsigned short __a) {
   return __builtin_altivec_vpopcnth(__a);
 }
-static __inline__ vector signed int __ATTRS_o_ai
+static __inline__ vector unsigned int __ATTRS_o_ai
 vec_popcnt(vector signed int __a) {
   return __builtin_altivec_vpopcntw(__a);
 }
@@ -2506,7 +2506,7 @@
 vec_popcnt(vector unsigned int __a) {
   return __builtin_altivec_vpopcntw(__a);
 }
-static __inline__ vector signed long long __ATTRS_o_ai
+static __inline__ vector unsigned long long __ATTRS_o_ai
 vec_popcnt(vector signed long long __a) {
   return __builtin_altivec_vpopcntd(__a);
 }


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