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Fix reading of negative constants

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baldurk
2020-04-07 21:16:55 +01:00
parent d8fa0b624d
commit 109fad12ac
1 changed files with 3 additions and 2 deletions
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renderdoc/driver/shaders/spirv/spirv_processor.cpp
+3 -2
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@@ -612,11 +612,12 @@ void Processor::RegisterOp(Iter it)
else
{
// if it's signed, sign extend
if(type.scalar().signedness)
if(type.scalar().signedness && type.scalar().width < 16)
{
// is the top bit set?
if(v.value.uv[0] & (1 << (type.scalar().width - 1)))
{
uint32_t mask = (1 << type.scalar().width) - 1;
uint32_t mask = 0xFFFFFFFFU >> (32 - type.scalar().width);
v.value.uv[0] |= ~mask & ~0U;
}