From 274897dfd59b4d08029ab7e93be4f84654abcdc8 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Sun, 21 Feb 2021 23:42:38 -0300 Subject: spirv: Fixes and Intel specific workarounds --- .../frontend/maxwell/translate/impl/impl.cpp | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp') diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp index be17bb0d9..165d475b9 100644 --- a/src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp @@ -83,9 +83,12 @@ IR::U32 TranslatorVisitor::GetImm20(u64 insn) { BitField<20, 19, u64> value; BitField<56, 1, u64> is_negative; } const imm{insn}; - const s32 positive_value{static_cast(imm.value)}; - const s32 value{imm.is_negative != 0 ? -positive_value : positive_value}; - return ir.Imm32(value); + if (imm.is_negative != 0) { + const s64 raw{static_cast(imm.value)}; + return ir.Imm32(static_cast(-(1LL << 19) + raw)); + } else { + return ir.Imm32(static_cast(imm.value)); + } } IR::F32 TranslatorVisitor::GetFloatImm20(u64 insn) { @@ -94,9 +97,9 @@ IR::F32 TranslatorVisitor::GetFloatImm20(u64 insn) { BitField<20, 19, u64> value; BitField<56, 1, u64> is_negative; } const imm{insn}; - const f32 positive_value{Common::BitCast(static_cast(imm.value) << 12)}; - const f32 value{imm.is_negative != 0 ? -positive_value : positive_value}; - return ir.Imm32(value); + const u32 sign_bit{imm.is_negative != 0 ? (1ULL << 31) : 0}; + const u32 value{static_cast(imm.value) << 12}; + return ir.Imm32(Common::BitCast(value | sign_bit)); } IR::U32 TranslatorVisitor::GetImm32(u64 insn) { -- cgit v1.2.3