424733c12a
Modify the IfStmt node to suppoort constant evaluated expressions. Add a new ExpressionEvaluationContext::ImmediateFunctionContext to keep track of immediate function contexts. This proved easier/better/probably more efficient than walking the AST backward as it allows diagnosing nested if consteval statements.
29 lines
642 B
C++
29 lines
642 B
C++
// RUN: %clang_cc1 -std=c++2b %s -emit-llvm -o - | FileCheck %s
|
|
|
|
void should_be_used_1();
|
|
void should_be_used_2();
|
|
void should_be_used_3();
|
|
constexpr void should_not_be_used() {}
|
|
|
|
constexpr void f() {
|
|
if consteval {
|
|
should_not_be_used(); // CHECK-NOT: call {{.*}}should_not_be_used
|
|
} else {
|
|
should_be_used_1(); // CHECK: call {{.*}}should_be_used_1
|
|
}
|
|
|
|
if !consteval {
|
|
should_be_used_2(); // CHECK: call {{.*}}should_be_used_2
|
|
}
|
|
|
|
if !consteval {
|
|
should_be_used_3(); // CHECK: call {{.*}}should_be_used_3
|
|
} else {
|
|
should_not_be_used(); // CHECK-NOT: call {{.*}}should_not_be_used
|
|
}
|
|
}
|
|
|
|
void g() {
|
|
f();
|
|
}
|