https://github.com/johnplatts created
https://github.com/llvm/llvm-project/pull/129923
Fixes bug in vec_pack_to_short_fp32 in clang/lib/Headers/altivec.h.
Resolves issue #60822
Reviewer: @lei137
>From 0bfa20f7a2deaf61e444404f7418f4571a9d6de4 Mon Sep 17 00:00:00 2001
From: John Platts <john_pla...@hotmail.com>
Date: Wed, 5 Mar 2025 13:11:15 -0600
Subject: [PATCH] Fixed vec_pack_to_short_fp32 in Clang altivec.h
---
clang/lib/Headers/altivec.h | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/clang/lib/Headers/altivec.h b/clang/lib/Headers/altivec.h
index 8da65055012f1..45d557238e3d9 100644
--- a/clang/lib/Headers/altivec.h
+++ b/clang/lib/Headers/altivec.h
@@ -7529,13 +7529,9 @@ vec_pack(vector double __a, vector double __b) {
#ifdef __POWER9_VECTOR__
static __inline__ vector unsigned short __ATTRS_o_ai
vec_pack_to_short_fp32(vector float __a, vector float __b) {
- vector float __resa = __builtin_vsx_xvcvsphp(__a);
- vector float __resb = __builtin_vsx_xvcvsphp(__b);
-#ifdef __LITTLE_ENDIAN__
- return (vector unsigned short)vec_mergee(__resa, __resb);
-#else
- return (vector unsigned short)vec_mergeo(__resa, __resb);
-#endif
+ vector unsigned int __resa = (vector unsigned
int)__builtin_vsx_xvcvsphp(__a);
+ vector unsigned int __resb = (vector unsigned
int)__builtin_vsx_xvcvsphp(__b);
+ return vec_pack(__resa, __resb);
}
#endif
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