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authorReinUsesLisp <reinuseslisp@airmail.cc>2021-05-23 09:12:08 +0200
committerameerj <52414509+ameerj@users.noreply.github.com>2021-07-23 03:51:29 +0200
commit33bebc34127305e107d54e0bdd0a6806676abf2f (patch)
treef83852123a3ecd40822623bebc91bf74fcbfd4d1 /src/shader_recompiler/backend
parentspirv: Implement int8 and int16 conversion fallbacks (diff)
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Diffstat (limited to 'src/shader_recompiler/backend')
-rw-r--r--src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp38
1 files changed, 34 insertions, 4 deletions
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
index cd5b1f42c..86e6a4f3b 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
@@ -171,7 +171,13 @@ Id EmitFindUMsb32(EmitContext& ctx, Id value) {
}
Id EmitSMin32(EmitContext& ctx, Id a, Id b) {
- return ctx.OpSMin(ctx.U32[1], a, b);
+ const bool is_broken{ctx.profile.has_broken_signed_operations};
+ if (is_broken) {
+ a = ctx.OpBitcast(ctx.S32[1], a);
+ b = ctx.OpBitcast(ctx.S32[1], b);
+ }
+ const Id result{ctx.OpSMin(ctx.U32[1], a, b)};
+ return is_broken ? ctx.OpBitcast(ctx.U32[1], result) : result;
}
Id EmitUMin32(EmitContext& ctx, Id a, Id b) {
@@ -179,7 +185,13 @@ Id EmitUMin32(EmitContext& ctx, Id a, Id b) {
}
Id EmitSMax32(EmitContext& ctx, Id a, Id b) {
- return ctx.OpSMax(ctx.U32[1], a, b);
+ const bool is_broken{ctx.profile.has_broken_signed_operations};
+ if (is_broken) {
+ a = ctx.OpBitcast(ctx.S32[1], a);
+ b = ctx.OpBitcast(ctx.S32[1], b);
+ }
+ const Id result{ctx.OpSMax(ctx.U32[1], a, b)};
+ return is_broken ? ctx.OpBitcast(ctx.U32[1], result) : result;
}
Id EmitUMax32(EmitContext& ctx, Id a, Id b) {
@@ -187,14 +199,32 @@ Id EmitUMax32(EmitContext& ctx, Id a, Id b) {
}
Id EmitSClamp32(EmitContext& ctx, IR::Inst* inst, Id value, Id min, Id max) {
- const Id result{ctx.OpSClamp(ctx.U32[1], value, min, max)};
+ Id result{};
+ if (ctx.profile.has_broken_signed_operations || ctx.profile.has_broken_spirv_clamp) {
+ value = ctx.OpBitcast(ctx.S32[1], value);
+ min = ctx.OpBitcast(ctx.S32[1], min);
+ max = ctx.OpBitcast(ctx.S32[1], max);
+ if (ctx.profile.has_broken_spirv_clamp) {
+ result = ctx.OpSMax(ctx.S32[1], ctx.OpSMin(ctx.S32[1], value, max), min);
+ } else {
+ result = ctx.OpSClamp(ctx.S32[1], value, min, max);
+ }
+ result = ctx.OpBitcast(ctx.U32[1], result);
+ } else {
+ result = ctx.OpSClamp(ctx.U32[1], value, min, max);
+ }
SetZeroFlag(ctx, inst, result);
SetSignFlag(ctx, inst, result);
return result;
}
Id EmitUClamp32(EmitContext& ctx, IR::Inst* inst, Id value, Id min, Id max) {
- const Id result{ctx.OpUClamp(ctx.U32[1], value, min, max)};
+ Id result{};
+ if (ctx.profile.has_broken_spirv_clamp) {
+ result = ctx.OpUMax(ctx.U32[1], ctx.OpUMin(ctx.U32[1], value, max), min);
+ } else {
+ result = ctx.OpUClamp(ctx.U32[1], value, min, max);
+ }
SetZeroFlag(ctx, inst, result);
SetSignFlag(ctx, inst, result);
return result;