================
@@ -5330,11 +5330,13 @@ static uint32_t
getIdentityValueFor32BitWaveReduction(unsigned Opc) {
case AMDGPU::S_MAX_U32:
return std::numeric_limits<uint32_t>::min();
case AMDGPU::S_MAX_I32:
+ case AMDGPU::V_SUB_F32_e64: // +0.0
----------------
jmmartinez wrote:
This doesn't seem right.
Isn't `0b10000000000000000000000000000000` the opposite, -0.0 ?
I'd feel reassured if you used a bitcast instead of a comment (comments tend to
diverge from the code eventually): `__builtin_bit_cast(+0.0f, uint32_t)`.
https://github.com/llvm/llvm-project/pull/161815
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