From d52bacf6f035ddbc4b2333953709cbd3993e4817 Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Fri, 11 Jun 2021 01:11:59 -0400 Subject: [PATCH] spirv/convert: Catch more signed operations oversights The sign bit on integers of size < 32 was not properly preserved in casts --- .../backend/spirv/emit_spirv_convert.cpp | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_convert.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_convert.cpp index 2c4250a0c..fd42b7a16 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv_convert.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv_convert.cpp @@ -17,14 +17,14 @@ Id ExtractU16(EmitContext& ctx, Id value) { Id ExtractS16(EmitContext& ctx, Id value) { if (ctx.profile.support_int16) { - return ctx.OpUConvert(ctx.S16, value); + return ctx.OpSConvert(ctx.S16, value); } else { return ctx.OpBitFieldSExtract(ctx.U32[1], value, ctx.u32_zero_value, ctx.Const(16u)); } } Id ExtractU8(EmitContext& ctx, Id value) { - if (ctx.profile.support_int16) { + if (ctx.profile.support_int8) { return ctx.OpUConvert(ctx.U8, value); } else { return ctx.OpBitFieldUExtract(ctx.U32[1], value, ctx.u32_zero_value, ctx.Const(8u)); @@ -42,7 +42,7 @@ Id ExtractS8(EmitContext& ctx, Id value) { Id EmitConvertS16F16(EmitContext& ctx, Id value) { if (ctx.profile.support_int16) { - return ctx.OpUConvert(ctx.U32[1], ctx.OpConvertFToS(ctx.U16, value)); + return ctx.OpSConvert(ctx.U32[1], ctx.OpConvertFToS(ctx.U16, value)); } else { return ExtractS16(ctx, ctx.OpConvertFToS(ctx.U32[1], value)); } @@ -50,7 +50,7 @@ Id EmitConvertS16F16(EmitContext& ctx, Id value) { Id EmitConvertS16F32(EmitContext& ctx, Id value) { if (ctx.profile.support_int16) { - return ctx.OpUConvert(ctx.U32[1], ctx.OpConvertFToS(ctx.U16, value)); + return ctx.OpSConvert(ctx.U32[1], ctx.OpConvertFToS(ctx.U16, value)); } else { return ExtractS16(ctx, ctx.OpConvertFToS(ctx.U32[1], value)); } @@ -58,7 +58,7 @@ Id EmitConvertS16F32(EmitContext& ctx, Id value) { Id EmitConvertS16F64(EmitContext& ctx, Id value) { if (ctx.profile.support_int16) { - return ctx.OpUConvert(ctx.U32[1], ctx.OpConvertFToS(ctx.U16, value)); + return ctx.OpSConvert(ctx.U32[1], ctx.OpConvertFToS(ctx.U16, value)); } else { return ExtractS16(ctx, ctx.OpConvertFToS(ctx.U32[1], value)); }