File: ext-vector-member-alignment.c

package info (click to toggle)
llvm-toolchain-3.5 1%3A3.5-10
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 282,028 kB
  • ctags: 310,872
  • sloc: cpp: 1,883,926; ansic: 310,731; objc: 86,612; python: 79,565; asm: 65,844; sh: 9,829; makefile: 6,057; perl: 5,589; ml: 5,254; pascal: 3,285; lisp: 1,640; xml: 686; cs: 239; csh: 117
file content (27 lines) | stat: -rw-r--r-- 881 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s

typedef float float4 __attribute__((ext_vector_type(4)));

struct __attribute__((packed, aligned(4))) struct1 {
  float4 position;
};
int x = __alignof(struct struct1);

float4 f(struct struct1* x) { return x->position; }

void func(struct struct1* p, float *a, float *b, float c) {
  p->position.x = c;
  *a = p->position.y;
  *b = p->position[0];
  p->position[2] = c;
  // FIXME: We should be able to come up with a more aggressive alignment
  // estimate.
  // CHECK: @func
  // CHECK: load <4 x float>* {{%.*}}, align 1
  // CHECK: store <4 x float> {{%.*}}, <4 x float>* {{%.*}}, align 1
  // CHECK: load <4 x float>* {{%.*}}, align 1
  // CHECK: load <4 x float>* {{%.*}}, align 1
  // CHECK: load <4 x float>* {{%.*}}, align 1
  // CHECK: store <4 x float> {{%.*}}, <4 x float>* {{%.*}}, align 1
  // CHECK: ret void
}