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[SystemZ][z/OS] Add test of leading zero length bitfield in const/volatile struct 

Reviewed By: abhina.sreeskantharajan

Differential Revision: https://reviews.llvm.org/D99508
This commit is contained in:
Fanbo Meng 2021-03-29 12:06:12 -04:00
parent 4d593efd7f
commit f1e0c7fdd7
1 changed files with 18 additions and 0 deletions
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18
clang/test/CodeGen/SystemZ/zos-alignment.c
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@ -12,6 +12,24 @@ int f0() { return v0 + v1 + v2 + v3; }
// DECL-NEXT: @v2 {{.*}} align 16
// DECL-NEXT: @v3 {{.*}} align 32
const struct cs0 {
unsigned long :0;
long long a;
} CS0 = {};
// CHECK: 0 | struct cs0
// CHECK-NEXT: 0:- | unsigned long
// CHECK-NEXT: 0 | long long a
// CHECK-NEXT: | [sizeof=8, align=8]
volatile struct vs0 {
long :0;
short a;
} VS0;
// CHECK: 0 | struct vs0
// CHECK-NEXT: 0:- | long
// CHECK-NEXT: 0 | short a
// CHECK-NEXT: | [sizeof=2, align=2]
struct s0 {
short a:3;
long b:5;