tbaeder created this revision.
tbaeder added reviewers: aaron.ballman, erichkeane, shafik, cor3ntin.
Herald added a project: All.
tbaeder requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
Split out from https://reviews.llvm.org/D155368
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D155546
Files:
clang/lib/AST/Interp/InterpBuiltin.cpp
Index: clang/lib/AST/Interp/InterpBuiltin.cpp
===================================================================
--- clang/lib/AST/Interp/InterpBuiltin.cpp
+++ clang/lib/AST/Interp/InterpBuiltin.cpp
@@ -139,6 +139,25 @@
return true;
}
+static bool interp__builtin_fmin(InterpState &S, CodePtr OpPC,
+ const InterpFrame *Frame, const Function *F) {
+ const Floating &LHS = getParam<Floating>(Frame, 0);
+ const Floating &RHS = getParam<Floating>(Frame, 1);
+
+ Floating Result;
+
+ // When comparing zeroes, return -0.0 if one of the zeroes is negative.
+ if (LHS.isZero() && RHS.isZero() && RHS.isNegative())
+ Result = RHS;
+ else if (LHS.isNan() || RHS < LHS)
+ Result = RHS;
+ else
+ Result = LHS;
+
+ S.Stk.push<Floating>(Result);
+ return true;
+}
+
bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const Function *F) {
InterpFrame *Frame = S.Current;
APValue Dummy;
@@ -191,6 +210,14 @@
return Ret<PT_Float>(S, OpPC, Dummy);
break;
+ case Builtin::BI__builtin_fmin:
+ case Builtin::BI__builtin_fminf:
+ case Builtin::BI__builtin_fminl:
+ case Builtin::BI__builtin_fminf16:
+ case Builtin::BI__builtin_fminf128:
+ if (interp__builtin_fmin(S, OpPC, Frame, F))
+ return Ret<PT_Float>(S, OpPC, Dummy);
+ break;
default:
return false;
Index: clang/lib/AST/Interp/InterpBuiltin.cpp
===================================================================
--- clang/lib/AST/Interp/InterpBuiltin.cpp
+++ clang/lib/AST/Interp/InterpBuiltin.cpp
@@ -139,6 +139,25 @@
return true;
}
+static bool interp__builtin_fmin(InterpState &S, CodePtr OpPC,
+ const InterpFrame *Frame, const Function *F) {
+ const Floating &LHS = getParam<Floating>(Frame, 0);
+ const Floating &RHS = getParam<Floating>(Frame, 1);
+
+ Floating Result;
+
+ // When comparing zeroes, return -0.0 if one of the zeroes is negative.
+ if (LHS.isZero() && RHS.isZero() && RHS.isNegative())
+ Result = RHS;
+ else if (LHS.isNan() || RHS < LHS)
+ Result = RHS;
+ else
+ Result = LHS;
+
+ S.Stk.push<Floating>(Result);
+ return true;
+}
+
bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const Function *F) {
InterpFrame *Frame = S.Current;
APValue Dummy;
@@ -191,6 +210,14 @@
return Ret<PT_Float>(S, OpPC, Dummy);
break;
+ case Builtin::BI__builtin_fmin:
+ case Builtin::BI__builtin_fminf:
+ case Builtin::BI__builtin_fminl:
+ case Builtin::BI__builtin_fminf16:
+ case Builtin::BI__builtin_fminf128:
+ if (interp__builtin_fmin(S, OpPC, Frame, F))
+ return Ret<PT_Float>(S, OpPC, Dummy);
+ break;
default:
return false;
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