| // RUN: %clang_cc1 -triple s390x-linux-gnu -emit-llvm %s -o - | FileCheck %s |
| |
| // SystemZ prefers to align all global variables to two bytes. |
| |
| struct test { |
| signed char a; |
| }; |
| |
| char c; |
| // CHECK-DAG: @c = common global i8 0, align 2 |
| |
| struct test s; |
| // CHECK-DAG: @s = common global %struct.test zeroinitializer, align 2 |
| |
| extern char ec; |
| // CHECK-DAG: @ec = external global i8, align 2 |
| |
| extern struct test es; |
| // CHECK-DAG: @es = external global %struct.test, align 2 |
| |
| // Dummy function to make sure external symbols are used. |
| void func (void) |
| { |
| c = ec; |
| s = es; |
| } |
| |
| |
| // Alignment should be respected for coerced argument loads |
| |
| struct arg { long y __attribute__((packed, aligned(4))); }; |
| |
| extern struct arg x; |
| void f(struct arg); |
| |
| void test (void) |
| { |
| f(x); |
| } |
| |
| // CHECK-LABEL: @test |
| // CHECK: load i64, i64* getelementptr inbounds (%struct.arg, %struct.arg* @x, i32 0, i32 0), align 4 |
| |
