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conversions: Use volatile qualifier to prevent optimizations (#1399)

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Use volatile to prevent clang optimizations, fix int2float
This commit is contained in:
Sreelakshmi Haridas Maruthur
2022-03-17 14:27:24 -06:00
committed by GitHub
parent bbc7ccfc58
commit 0f4dc3166c
1 changed files with 2 additions and 1 deletions
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test_conformance/conversions/basic_test_conversions.cpp
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@@ -696,7 +696,8 @@ static void int2short( void *out, void *in){ ((cl_short*) out)[0] = ((cl_int*) i
static void int2uint( void *out, void *in){ ((cl_uint*) out)[0] = ((cl_int*) in)[0]; } static void int2uint( void *out, void *in){ ((cl_uint*) out)[0] = ((cl_int*) in)[0]; }
static void int2float( void *out, void *in) static void int2float( void *out, void *in)
{ {
cl_int l = ((cl_int*) in)[0]; // Use volatile to prevent optimization by Clang compiler
volatile cl_int l = ((cl_int *)in)[0];
((float*) out)[0] = (l == 0 ? 0.0f : (float) l); // Per IEEE-754-2008 5.4.1, 0's always convert to +0.0 ((float*) out)[0] = (l == 0 ? 0.0f : (float) l); // Per IEEE-754-2008 5.4.1, 0's always convert to +0.0
} }
static void int2double( void *out, void *in) static void int2double( void *out, void *in)