ManuelJBrito updated this revision to Diff 491783.
ManuelJBrito added a comment.
fixed diff
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D142388/new/
https://reviews.llvm.org/D142388
Files:
clang/include/clang/Basic/Builtins.def
clang/include/clang/Sema/Sema.h
clang/lib/CodeGen/CGBuiltin.cpp
clang/lib/Sema/SemaChecking.cpp
clang/test/CodeGen/builtins-nondet.c
Index: clang/test/CodeGen/builtins-nondet.c
===================================================================
--- /dev/null
+++ clang/test/CodeGen/builtins-nondet.c
@@ -0,0 +1,62 @@
+// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
+
+typedef float float4 __attribute__((ext_vector_type(4)));
+typedef _Bool bool4 __attribute__((ext_vector_type(4)));
+
+int clang_nondet_i( int x ) {
+// CHECK-LABEL: entry
+// CHECK: [[A:%.*]] = alloca i32, align 4
+// CHECK: store i32 [[X:%.*]], ptr [[A]], align 4
+// CHECK: [[R:%.*]] = freeze i32 poison
+// CHECK: ret i32 [[R]]
+ return __builtin_nondet(x);
+}
+
+float clang_nondet_f( float x ) {
+// CHECK-LABEL: entry
+// CHECK: [[A:%.*]] = alloca float, align 4
+// CHECK: store float [[X:%.*]], ptr [[A]], align 4
+// CHECK: [[R:%.*]] = freeze float poison
+// CHECK: ret float [[R]]
+ return __builtin_nondet(x);
+}
+
+double clang_nondet_d( double x ) {
+// CHECK-LABEL: entry
+// CHECK: [[A:%.*]] = alloca double, align 8
+// CHECK: store double [[X:%.*]], ptr [[A]], align 8
+// CHECK: [[R:%.*]] = freeze double poison
+// CHECK: ret double [[R]]
+ return __builtin_nondet(x);
+}
+
+_Bool clang_nondet_b( _Bool x) {
+// CHECK-LABEL: entry
+// CHECK: [[A:%.*]] = alloca i8, align 1
+// CHECK: [[B:%.*]] = zext i1 %x to i8
+// CHECK: store i8 [[B]], ptr [[A]], align 1
+// CHECK: [[R:%.*]] = freeze i1 poison
+// CHECK: ret i1 [[R]]
+ return __builtin_nondet(x);
+}
+
+float4 clang_nondet_fv( float4 x ) {
+// CHECK-LABEL: entry
+// CHECK: [[A:%.*]] = alloca <4 x float>, align 16
+// CHECK: store <4 x float> [[X:%.*]], ptr [[A]], align 16
+// CHECK: [[R:%.*]] = freeze <4 x float> poison
+// CHECK: ret <4 x float> [[R]]
+ return __builtin_nondet(x);
+}
+
+bool4 clang_nondet_bv( bool4 x ) {
+// CHECK-LABEL: entry
+// CHECK: [[A:%.*]] = alloca i8, align 1
+// CHECK: [[V:%.*]] = shufflevector <4 x i1> [[X:%.*]], <4 x i1> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
+// CHECK: [[B:%.*]] = bitcast <8 x i1> [[V]] to i8
+// CHECK: store i8 [[B]], ptr [[A]], align 1
+// CHECK: [[R:%.*]] = freeze <4 x i1> poison
+// CHECK: ret <4 x i1> [[R]]
+ return __builtin_nondet(x);
+}
+
Index: clang/lib/Sema/SemaChecking.cpp
===================================================================
--- clang/lib/Sema/SemaChecking.cpp
+++ clang/lib/Sema/SemaChecking.cpp
@@ -2580,6 +2580,12 @@
break;
}
+ case Builtin::BI__builtin_nondet: {
+ if (SemaBuiltinNonDet(TheCall))
+ return ExprError();
+ break;
+ }
+
// __builtin_elementwise_abs restricts the element type to signed integers or
// floating point types only.
case Builtin::BI__builtin_elementwise_abs: {
@@ -17799,6 +17805,16 @@
return false;
}
+bool Sema::SemaBuiltinNonDet(CallExpr *TheCall) {
+ if (checkArgCount(*this, TheCall, 1))
+ return true;
+
+ ExprResult Arg = TheCall->getArg(0);
+ QualType TyArg = Arg.get()->getType();
+ TheCall->setType(TyArg);
+ return false;
+}
+
ExprResult Sema::SemaBuiltinMatrixTranspose(CallExpr *TheCall,
ExprResult CallResult) {
if (checkArgCount(*this, TheCall, 1))
Index: clang/lib/CodeGen/CGBuiltin.cpp
===================================================================
--- clang/lib/CodeGen/CGBuiltin.cpp
+++ clang/lib/CodeGen/CGBuiltin.cpp
@@ -3060,6 +3060,12 @@
return RValue::get(V);
}
+ case Builtin::BI__builtin_nondet: {
+ Value *Result = PoisonValue::get(ConvertType(E->getArg(0)->getType()));
+ Result = Builder.CreateFreeze(Result);
+ return RValue::get(Result);
+ }
+
case Builtin::BI__builtin_elementwise_abs: {
Value *Result;
QualType QT = E->getArg(0)->getType();
Index: clang/include/clang/Sema/Sema.h
===================================================================
--- clang/include/clang/Sema/Sema.h
+++ clang/include/clang/Sema/Sema.h
@@ -13529,6 +13529,8 @@
bool PrepareBuiltinElementwiseMathOneArgCall(CallExpr *TheCall);
bool PrepareBuiltinReduceMathOneArgCall(CallExpr *TheCall);
+ bool SemaBuiltinNonDet(CallExpr *TheCall);
+
// Matrix builtin handling.
ExprResult SemaBuiltinMatrixTranspose(CallExpr *TheCall,
ExprResult CallResult);
Index: clang/include/clang/Basic/Builtins.def
===================================================================
--- clang/include/clang/Basic/Builtins.def
+++ clang/include/clang/Basic/Builtins.def
@@ -655,6 +655,7 @@
BUILTIN(__builtin_alloca_with_align, "v*zIz", "Fn")
BUILTIN(__builtin_alloca_with_align_uninitialized, "v*zIz", "Fn")
BUILTIN(__builtin_call_with_static_chain, "v.", "nt")
+BUILTIN(__builtin_nondet, "v.", "nt")
BUILTIN(__builtin_elementwise_abs, "v.", "nct")
BUILTIN(__builtin_elementwise_max, "v.", "nct")
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