1 // RUN: %clang_cc1 -no-opaque-pointers -emit-llvm-bc -disable-llvm-passes -o %t.bc %s
2 // RUN: llvm-dis %t.bc -o - | FileCheck %s
3 
4 // Test case for PR45426. Make sure we do not crash while writing bitcode
5 // containing a simplify-able fneg constant expression. Check that the created
6 // bitcode file can be disassembled and has the constant expressions simplified.
7 //
8 // CHECK-LABEL define i32 @main()
9 // CHECK:      entry:
10 // CHECK-NEXT:   %retval = alloca i32
11 // CHECK-NEXT:   store i32 0, i32* %retval
12 // CHECK-NEXT:   [[LV:%.*]] = load float*, float** @c
13 // CHECK-NEXT:   store float 1.000000e+00, float* [[LV]], align 4
14 // CHECK-NEXT:   ret i32 -1
15 
16 int a[], b;
17 float *c;
18 int main(void) {
19   return -(*c = &b != a);
20 }
21