1 // RUN: %clang_cc1 -triple s390x-linux-gnu -emit-llvm %s -o - | FileCheck %s 2 3 // SystemZ prefers to align all global variables to two bytes. 4 5 struct test { 6 signed char a; 7 }; 8 9 char c; 10 // CHECK-DAG: @c = common global i8 0, align 2 11 12 struct test s; 13 // CHECK-DAG: @s = common global %struct.test zeroinitializer, align 2 14 15 extern char ec; 16 // CHECK-DAG: @ec = external global i8, align 2 17 18 extern struct test es; 19 // CHECK-DAG: @es = external global %struct.test, align 2 20 21 // Dummy function to make sure external symbols are used. 22 void func (void) 23 { 24 c = ec; 25 s = es; 26 } 27 28 29 // Alignment should be respected for coerced argument loads 30 31 struct arg { long y __attribute__((packed, aligned(4))); }; 32 33 extern struct arg x; 34 void f(struct arg); 35 36 void test (void) 37 { 38 f(x); 39 } 40 41 // CHECK-LABEL: @test 42 // CHECK: load i64, i64* getelementptr inbounds (%struct.arg, %struct.arg* @x, i32 0, i32 0), align 4 43 44
