From 3de5112326a4274c97f154f3d335c11965ee960c Mon Sep 17 00:00:00 2001
From: Wilco Dijkstra <wilco.dijkstra@arm.com>
Date: Wed, 24 Jul 2024 15:17:47 +0100
Subject: [PATCH] math: Improve layout of expf data

GCC aligns global data to 16 bytes if their size is >= 16 bytes.  This patch
changes the exp2f_data struct slightly so that the fields are better aligned.
As a result on targets that support them, load-pair instructions accessing
poly_scaled and invln2_scaled are now 16-byte aligned.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
(cherry picked from commit 44fa9c1080fe6a9539f0d2345b9d2ae37b8ee57a)
---
 sysdeps/ieee754/flt-32/math_config.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sysdeps/ieee754/flt-32/math_config.h b/sysdeps/ieee754/flt-32/math_config.h
index d1b06a1a90..5904eb9bac 100644
--- a/sysdeps/ieee754/flt-32/math_config.h
+++ b/sysdeps/ieee754/flt-32/math_config.h
@@ -166,9 +166,9 @@ extern const struct exp2f_data
   uint64_t tab[1 << EXP2F_TABLE_BITS];
   double shift_scaled;
   double poly[EXP2F_POLY_ORDER];
-  double shift;
   double invln2_scaled;
   double poly_scaled[EXP2F_POLY_ORDER];
+  double shift;
 } __exp2f_data attribute_hidden;
 
 #define LOGF_TABLE_BITS 4
-- 
2.27.0

