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));
     }