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[dxbc] Fix invalid SPIR-V for FirstBitHi / FirstBitShi on vectors

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Refs #930.
This commit is contained in:
Philip Rebohle 2019-02-23 21:24:13 +01:00
parent d12a8e09a8
commit 6d814b24da
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1 changed files with 12 additions and 6 deletions
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18
src/dxbc/dxbc_compiler.cpp
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@ -2607,13 +2607,19 @@ namespace dxvk {
// The 'Hi' variants are counted from the MSB in DXBC
// rather than the LSB, so we have to invert the number
if (ins.op == DxbcOpcode::FirstBitHi
|| ins.op == DxbcOpcode::FirstBitShi) {
if (ins.op == DxbcOpcode::FirstBitHi || ins.op == DxbcOpcode::FirstBitShi) {
uint32_t boolTypeId = m_module.defBoolType();
if (dst.type.ccount > 1)
boolTypeId = m_module.defVectorType(boolTypeId, dst.type.ccount);
DxbcRegisterValue const31 = emitBuildConstVecu32(31u, 31u, 31u, 31u, ins.dst[0].mask);
DxbcRegisterValue constff = emitBuildConstVecu32(~0u, ~0u, ~0u, ~0u, ins.dst[0].mask);
dst.id = m_module.opSelect(typeId,
m_module.opINotEqual(m_module.defBoolType(),
dst.id, m_module.constu32(0xFFFFFFFF)),
m_module.opISub(typeId, m_module.constu32(31), dst.id),
m_module.constu32(0xFFFFFFFF));
m_module.opINotEqual(boolTypeId, dst.id, constff.id),
m_module.opISub(typeId, const31.id, dst.id),
constff.id);
}
// No modifiers are supported