mirror of
https://github.com/Gericom/teak-llvm.git
synced 2025-06-19 11:35:51 -04:00
c2c21ef9d2
Summary: Some OpenMP clauses rely on the values of the variables. If the variable is not initialized and used in OpenMP clauses that depend on the variables values, it should be reported that the uninitialized variable is used in the OpenMP clause expression. This patch adds initial processing for uninitialized variables in OpenMP constructs. Currently, it checks for use of the uninitialized variables in the structured blocks. Reviewers: NoQ, Szelethus, dcoughlin, xazax.hun, a.sidorin, george.karpenkov, szepet Subscribers: rnkovacs, guansong, jfb, jdoerfert, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D64356 llvm-svn: 365786
102 lines
3.5 KiB
C++
102 lines
3.5 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
|
|
|
|
// RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
|
|
|
|
void xxx(int argc) {
|
|
int x; // expected-note {{initialize the variable 'x' to silence this warning}}
|
|
#pragma omp target parallel for
|
|
for (int i = 0; i < 10; ++i)
|
|
argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
|
|
}
|
|
|
|
void foo() {
|
|
}
|
|
|
|
static int pvt;
|
|
#pragma omp threadprivate(pvt)
|
|
|
|
#pragma omp target parallel for // expected-error {{unexpected OpenMP directive '#pragma omp target parallel for'}}
|
|
|
|
int main(int argc, char **argv) {
|
|
#pragma omp target parallel for { // expected-warning {{extra tokens at the end of '#pragma omp target parallel for' are ignored}}
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
#pragma omp target parallel for ( // expected-warning {{extra tokens at the end of '#pragma omp target parallel for' are ignored}}
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
#pragma omp target parallel for[ // expected-warning {{extra tokens at the end of '#pragma omp target parallel for' are ignored}}
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
#pragma omp target parallel for] // expected-warning {{extra tokens at the end of '#pragma omp target parallel for' are ignored}}
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
#pragma omp target parallel for) // expected-warning {{extra tokens at the end of '#pragma omp target parallel for' are ignored}}
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
#pragma omp target parallel for } // expected-warning {{extra tokens at the end of '#pragma omp target parallel for' are ignored}}
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
#pragma omp target parallel for
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
// expected-warning@+1 {{extra tokens at the end of '#pragma omp target parallel for' are ignored}}
|
|
#pragma omp target parallel for unknown()
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
L1:
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
#pragma omp target parallel for
|
|
for (int i = 0; i < argc; ++i)
|
|
foo();
|
|
#pragma omp target parallel for
|
|
for (int i = 0; i < argc; ++i) {
|
|
goto L1; // expected-error {{use of undeclared label 'L1'}}
|
|
argc++;
|
|
}
|
|
|
|
for (int i = 0; i < 10; ++i) {
|
|
switch (argc) {
|
|
case (0):
|
|
#pragma omp target parallel for
|
|
for (int i = 0; i < argc; ++i) {
|
|
foo();
|
|
break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}
|
|
continue;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
#pragma omp target parallel for default(none) // expected-note {{explicit data sharing attribute requested here}}
|
|
for (int i = 0; i < 10; ++i)
|
|
++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
|
|
|
|
goto L2; // expected-error {{use of undeclared label 'L2'}}
|
|
#pragma omp target parallel for
|
|
for (int i = 0; i < argc; ++i)
|
|
L2:
|
|
foo();
|
|
#pragma omp target parallel for
|
|
for (int i = 0; i < argc; ++i) {
|
|
return 1; // expected-error {{cannot return from OpenMP region}}
|
|
}
|
|
|
|
[[]] // expected-error {{an attribute list cannot appear here}}
|
|
#pragma omp target parallel for
|
|
for (int n = 0; n < 100; ++n) {
|
|
}
|
|
|
|
#pragma omp target parallel for copyin(pvt) // expected-error {{unexpected OpenMP clause 'copyin' in directive '#pragma omp target parallel for'}}
|
|
for (int n = 0; n < 100; ++n) {}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void test_ordered() {
|
|
#pragma omp target parallel for ordered ordered // expected-error {{directive '#pragma omp target parallel for' cannot contain more than one 'ordered' clause}}
|
|
for (int i = 0; i < 16; ++i)
|
|
;
|
|
}
|
|
|