From 3f1322450294f86e4df63826879033aa1b99d8a3 Mon Sep 17 00:00:00 2001
From: Jakob Bornecrantz <jakob@collabora.com>
Date: Fri, 6 Sep 2019 15:36:02 +0100
Subject: [PATCH] d/psmv: Fix strict aliasing warnings when compiling with
 optimisations

---
 src/xrt/drivers/psmv/psmv_driver.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/xrt/drivers/psmv/psmv_driver.c b/src/xrt/drivers/psmv/psmv_driver.c
index f9bf1e6c7..98fed429d 100644
--- a/src/xrt/drivers/psmv/psmv_driver.c
+++ b/src/xrt/drivers/psmv/psmv_driver.c
@@ -372,9 +372,14 @@ psmv_vec3_i32_from_i16_wire(struct psmv_vec3_i32 *to,
 static void
 psmv_f32_from_wire(float *to, const struct psmv_f32_wire *from)
 {
-	uint32_t v = (from->val[0] << 0) | (from->val[1] << 8) |
-	             (from->val[2] << 16) | (from->val[3] << 24);
-	*to = *((float *)&v);
+	union {
+		uint32_t wire;
+		float f32;
+	} safe_copy;
+
+	safe_copy.wire = (from->val[0] << 0) | (from->val[1] << 8) |
+	                 (from->val[2] << 16) | (from->val[3] << 24);
+	*to = safe_copy.f32;
 }
 
 static void