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authorjmbills <jason.m.bills@intel.com>2021-08-03 01:45:08 +0300
committerGitHub <noreply@github.com>2021-08-03 01:45:08 +0300
commit10ad77d5bc86709d8ff7f95e7040e39f1c153903 (patch)
tree307cedb87f4c0a329740c55ac364ed489d1d8fc2 /meta-openembedded/meta-oe/recipes-graphics/vk-gl-cts/files/0001-Workaround-for-GCC-11-uninit-variable-warnings-946.patch
parentc6b1c6ba7a01b7987d65d61c262c44c320193108 (diff)
parent67327ddc580cb9a85219a534844832a1682780d4 (diff)
downloadopenbmc-10ad77d5bc86709d8ff7f95e7040e39f1c153903.tar.xz
Merge pull request #69 from Intel-BMC/update2021-0.631-0.63
Update
Diffstat (limited to 'meta-openembedded/meta-oe/recipes-graphics/vk-gl-cts/files/0001-Workaround-for-GCC-11-uninit-variable-warnings-946.patch')
-rw-r--r--meta-openembedded/meta-oe/recipes-graphics/vk-gl-cts/files/0001-Workaround-for-GCC-11-uninit-variable-warnings-946.patch73
1 files changed, 73 insertions, 0 deletions
diff --git a/meta-openembedded/meta-oe/recipes-graphics/vk-gl-cts/files/0001-Workaround-for-GCC-11-uninit-variable-warnings-946.patch b/meta-openembedded/meta-oe/recipes-graphics/vk-gl-cts/files/0001-Workaround-for-GCC-11-uninit-variable-warnings-946.patch
new file mode 100644
index 000000000..6c87cad0a
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-graphics/vk-gl-cts/files/0001-Workaround-for-GCC-11-uninit-variable-warnings-946.patch
@@ -0,0 +1,73 @@
+From 9cd614dd5481a4fdf552effac4820f51a10092c7 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Mika=20V=C3=A4in=C3=B6l=C3=A4?=
+ <33728696+mvainola@users.noreply.github.com>
+Date: Wed, 7 Apr 2021 13:12:17 +0300
+Subject: [PATCH] Workaround for GCC 11 uninit variable warnings (#946)
+
+Building Amber with GCC 11.0.1 produces some uninitialized variable
+warnings. This commit works around them by replacing
+reinterpret_cast with memcpy when type punning unsigned integers to
+floats.
+
+Upstream-Status: Backport [https://github.com/google/amber/commit/aa69a0ac23ea7f68dd32bbef210546a5d84c1734]
+---
+ src/float16_helper.cc | 22 ++++++++++++++++------
+ 1 file changed, 16 insertions(+), 6 deletions(-)
+
+diff --git a/src/float16_helper.cc b/src/float16_helper.cc
+index 617bd72..5cb35e7 100644
+--- a/src/float16_helper.cc
++++ b/src/float16_helper.cc
+@@ -15,6 +15,7 @@
+ #include "src/float16_helper.h"
+
+ #include <cassert>
++#include <cstring>
+
+ // Float10
+ // | 9 8 7 6 5 | 4 3 2 1 0 |
+@@ -75,8 +76,11 @@ float HexFloat16ToFloat(const uint8_t* value) {
+ }
+
+ uint32_t hex = sign | exponent | mantissa;
+- float* hex_float = reinterpret_cast<float*>(&hex);
+- return *hex_float;
++ float hex_float;
++ static_assert((sizeof(uint32_t) == sizeof(float)),
++ "sizeof(uint32_t) != sizeof(float)");
++ memcpy(&hex_float, &hex, sizeof(float));
++ return hex_float;
+ }
+
+ // Convert float |value| whose size is 11 bits to 32 bits float
+@@ -89,8 +93,11 @@ float HexFloat11ToFloat(const uint8_t* value) {
+ uint32_t mantissa = (static_cast<uint32_t>(value[0]) & 0x3f) << 17U;
+
+ uint32_t hex = exponent | mantissa;
+- float* hex_float = reinterpret_cast<float*>(&hex);
+- return *hex_float;
++ float hex_float;
++ static_assert((sizeof(uint32_t) == sizeof(float)),
++ "sizeof(uint32_t) != sizeof(float)");
++ memcpy(&hex_float, &hex, sizeof(float));
++ return hex_float;
+ }
+
+ // Convert float |value| whose size is 10 bits to 32 bits float
+@@ -103,8 +110,11 @@ float HexFloat10ToFloat(const uint8_t* value) {
+ uint32_t mantissa = (static_cast<uint32_t>(value[0]) & 0x1f) << 18U;
+
+ uint32_t hex = exponent | mantissa;
+- float* hex_float = reinterpret_cast<float*>(&hex);
+- return *hex_float;
++ float hex_float;
++ static_assert((sizeof(uint32_t) == sizeof(float)),
++ "sizeof(uint32_t) != sizeof(float)");
++ memcpy(&hex_float, &hex, sizeof(float));
++ return hex_float;
+ }
+
+ } // namespace
+--
+2.31.1
+