llvm-project/clang/test/CodeGen/sanitize-atomic-int-overflow.c
Aaron Ballman adc402bf3d Use functions with prototypes when appropriate; NFC
A significant number of our tests in C accidentally use functions
without prototypes. This patch converts the function signatures to have
a prototype for the situations where the test is not specific to K&R C
declarations. e.g.,

  void func();

becomes

  void func(void);

This is the eleventh batch of tests being updated (there are a
significant number of other tests left to be updated).
2022-02-15 16:06:43 -05:00

34 lines
951 B
C

// RUN: %clang_cc1 -triple x86_64-apple-macosx10.14.0 -fsanitize=unsigned-integer-overflow %s -emit-llvm -o - | FileCheck %s
_Atomic(unsigned) atomic;
// CHECK-LABEL: define{{.*}} void @cmpd_assign
void cmpd_assign(void) {
// CHECK: br label %[[LOOP_START:.*]]
// CHECK: [[LOOP_START]]:
// CHECK-NEXT: phi i32 {{.*}}, [ {{.*}}, %[[INCOMING_BLOCK:.*]] ]
// CHECK: [[INCOMING_BLOCK]]:
// CHECK-NEXT: cmpxchg
// CHECK-NEXT: extractvalue
// CHECK-NEXT: extractvalue
// CHECK-NEXT: br i1 %8, label %{{.*}}, label %[[LOOP_START]]
atomic += 1;
}
// CHECK-LABEL: define{{.*}} void @inc
void inc(void) {
// CHECK: br label %[[LOOP_START:.*]]
// CHECK: [[LOOP_START]]:
// CHECK-NEXT: phi i32 {{.*}}, [ {{.*}}, %[[INCOMING_BLOCK:.*]] ]
// CHECK: [[INCOMING_BLOCK]]:
// CHECK-NEXT: cmpxchg
// CHECK-NEXT: extractvalue
// CHECK-NEXT: extractvalue
// CHECK-NEXT: br i1 %8, label %{{.*}}, label %[[LOOP_START]]
atomic++;
}