Fix inverted TEST

Remove sign extend when loading int32
ZDoom · Jun 8, 2020 · 31a603b · 31a603b
1 parent 5112f5a
commit 31a603b
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/src/common/scripting/jit/jit_flow.cpp b/src/common/scripting/jit/jit_flow.cpp
@@ -6,7 +6,7 @@ void JitCompiler::EmitTEST()
 	int i = (int)(ptrdiff_t)(pc - sfunc->Code);
 
 	auto continuebb = irfunc->createBasicBlock({});
-	cc.CreateCondBr(cc.CreateICmpEQ(LoadD(A), ConstValueD(BC)), GetLabel(i + 2), continuebb);
+	cc.CreateCondBr(cc.CreateICmpNE(LoadD(A), ConstValueD(BC)), GetLabel(i + 2), continuebb);
 	cc.SetInsertPoint(continuebb);
 }
 
@@ -16,7 +16,7 @@ void JitCompiler::EmitTESTN()
 	int i = (int)(ptrdiff_t)(pc - sfunc->Code);
 
 	auto continuebb = irfunc->createBasicBlock({});
-	cc.CreateCondBr(cc.CreateICmpEQ(LoadD(A), ConstValueD(-bc)), GetLabel(i + 2), continuebb);
+	cc.CreateCondBr(cc.CreateICmpNE(LoadD(A), ConstValueD(-bc)), GetLabel(i + 2), continuebb);
 	cc.SetInsertPoint(continuebb);
 }
 

diff --git a/src/common/scripting/jit/jit_load.cpp b/src/common/scripting/jit/jit_load.cpp
@@ -114,13 +114,13 @@ void JitCompiler::EmitLH_R()
 void JitCompiler::EmitLW()
 {
 	EmitNullPointerThrow(B, X_READ_NIL);
-	StoreD(SExt(Load(ToInt32Ptr(LoadA(B), ConstD(C)))), A);
+	StoreD(Load(ToInt32Ptr(LoadA(B), ConstD(C))), A);
 }
 
 void JitCompiler::EmitLW_R()
 {
 	EmitNullPointerThrow(B, X_READ_NIL);
-	StoreD(SExt(Load(ToInt32Ptr(LoadA(B), LoadD(C)))), A);
+	StoreD(Load(ToInt32Ptr(LoadA(B), LoadD(C))), A);
 }
 
 void JitCompiler::EmitLBU()