llvm-project/clang/test/CodeGen/sparc-arguments.c
Aaron Ballman adc402bf3d Use functions with prototypes when appropriate; NFC
A significant number of our tests in C accidentally use functions
without prototypes. This patch converts the function signatures to have
a prototype for the situations where the test is not specific to K&R C
declarations. e.g.,

  void func();

becomes

  void func(void);

This is the eleventh batch of tests being updated (there are a
significant number of other tests left to be updated).
2022-02-15 16:06:43 -05:00

28 lines
947 B
C

// RUN: %clang_cc1 -triple sparc-unknown-unknown -emit-llvm -o - %s | FileCheck %s
// Ensure that we pass proper alignment to llvm in the call
// instruction. The proper alignment for the type is sometimes known
// only by clang, and is not manifest in the LLVM-type. So, it must be
// explicitly passed through. (Besides the case of the user specifying
// alignment, as here, this situation also occurrs for non-POD C++
// structs with tail-padding: clang emits these as packed llvm-structs
// for ABI reasons.)
struct s1 {
int x;
} __attribute__((aligned(8)));
struct s1 x1;
// Ensure the align 8 is passed through:
// CHECK-LABEL: define{{.*}} void @f1()
// CHECK: call void @f1_helper(%struct.s1* noundef byval(%struct.s1) align 8 @x1)
// Also ensure the declaration of f1_helper includes it
// CHECK: declare void @f1_helper(%struct.s1* noundef byval(%struct.s1) align 8)
void f1_helper(struct s1);
void f1(void) {
f1_helper(x1);
}