From: Dave Airlie <airlied@redhat.com>
Date: Fri, 17 May 2019 01:26:57 +0000 (+1000)
Subject: imgui: fix undefined behaviour bitshift.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ebdddb36a0418caf0b80810c3641ee237905a5e0;p=mesa.git

imgui: fix undefined behaviour bitshift.

imgui_draw.cpp:1781: error[shiftTooManyBitsSigned]: Shifting signed 32-bit value by 31 bits is undefined behaviour

Reported by coverity

Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>
---

diff --git a/src/imgui/imgui_draw.cpp b/src/imgui/imgui_draw.cpp
index 1d4e1d51692..c69c01ee801 100644
--- a/src/imgui/imgui_draw.cpp
+++ b/src/imgui/imgui_draw.cpp
@@ -1778,7 +1778,7 @@ static void UnpackBoolVectorToFlatIndexList(const ImBoolVector* in, ImVector<int
     for (const int* it = it_begin; it < it_end; it++)
         if (int entries_32 = *it)
             for (int bit_n = 0; bit_n < 32; bit_n++)
-                if (entries_32 & (1 << bit_n))
+                if (entries_32 & (1u << bit_n))
                     out->push_back((int)((it - it_begin) << 5) + bit_n);
 }