File: tbaa-vec.cpp

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (20 lines) | stat: -rw-r--r-- 736 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s
// Test TBAA metadata generated by front-end (vector types are always treated as mayalias).

typedef float __m128 __attribute__ ((__vector_size__ (16)));

struct A {
  __m128 a, b;
};

void foo(A *a, __m128 v) {
  // CHECK-LABEL: define{{.*}} void @_Z3fooP1ADv4_f
  a->a = v;
  // CHECK: store <4 x float> %v, ptr %{{.*}}, align 16, !tbaa [[TAG_char:!.*]]
  // CHECK: store <4 x float> %{{.*}}, ptr %{{.*}}, align 16, !tbaa [[TAG_char]]
}

// CHECK: [[TYPE_char:!.*]] = !{!"omnipotent char", [[TAG_cxx_tbaa:!.*]],
// CHECK: [[TAG_cxx_tbaa]] = !{!"Simple C++ TBAA"}
// CHECK: [[TAG_char]] = !{[[TYPE_char]], [[TYPE_char]], i64 0}