| // REQUIRES: arm-registered-target |
| // RUN: %clang_cc1 -triple arm -target-abi aapcs %s -emit-llvm -o - | FileCheck -check-prefix=AAPCS %s |
| // RUN: %clang_cc1 -triple arm -target-abi apcs-gnu %s -emit-llvm -o - | FileCheck -check-prefix=APCS-GNU %s |
| /* |
| * Check that va_arg accesses stack according to ABI alignment |
| * long long and double require 8-byte alignment under AAPCS |
| * however, they only require 4-byte alignment under APCS |
| */ |
| long long t1(int i, ...) { |
| // AAPCS: t1 |
| // APCS-GNU: t1 |
| __builtin_va_list ap; |
| __builtin_va_start(ap, i); |
| // AAPCS: add i32 %{{.*}} 7 |
| // AAPCS: and i32 %{{.*}} -8 |
| // APCS-GNU-NOT: add i32 %{{.*}} 7 |
| // APCS-GNU-NOT: and i32 %{{.*}} -8 |
| long long ll = __builtin_va_arg(ap, long long); |
| __builtin_va_end(ap); |
| return ll; |
| } |
| double t2(int i, ...) { |
| // AAPCS: t2 |
| // APCS-GNU: t2 |
| __builtin_va_list ap; |
| __builtin_va_start(ap, i); |
| // AAPCS: add i32 %{{.*}} 7 |
| // AAPCS: and i32 %{{.*}} -8 |
| // APCS-GNU-NOT: add i32 %{{.*}} 7 |
| // APCS-GNU-NOT: and i32 %{{.*}} -8 |
| double ll = __builtin_va_arg(ap, double); |
| __builtin_va_end(ap); |
| return ll; |
| } |
