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document unrelated bugs with atomic fmin/max

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Frodo Baggins 2025-07-11 20:28:04 -07:00
parent 5b6f9f7820
commit e51d31b359
1 changed files with 2 additions and 0 deletions
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src/shader_recompiler/backend/spirv/emit_spirv_atomic.cpp
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@ -268,6 +268,7 @@ Id EmitBufferAtomicFMin32(EmitContext& ctx, IR::Inst* inst, u32 handle, Id addre
const auto sign_bit_set =
ctx.OpBitFieldUExtract(ctx.U32[1], u32_value, ctx.ConstU32(31u), ctx.ConstU32(1u));
// FIXME this needs control flow because it currently executes both atomics
const auto result = ctx.OpSelect(
ctx.F32[1], sign_bit_set,
EmitBitCastF32U32(ctx, EmitBufferAtomicUMax32(ctx, inst, handle, address, u32_value)),
@ -302,6 +303,7 @@ Id EmitBufferAtomicFMax32(EmitContext& ctx, IR::Inst* inst, u32 handle, Id addre
const auto sign_bit_set =
ctx.OpBitFieldUExtract(ctx.U32[1], u32_value, ctx.ConstU32(31u), ctx.ConstU32(1u));
// FIXME this needs control flow because it currently executes both atomics
const auto result = ctx.OpSelect(
ctx.F32[1], sign_bit_set,
EmitBitCastF32U32(ctx, EmitBufferAtomicUMin32(ctx, inst, handle, address, u32_value)),