117 lines · c
1// RUN: %clang_cc1 -std=c89 -w -fmerge-all-constants -emit-llvm < %s | FileCheck %s2 3// CHECK: @test1.x = internal constant [12 x i32] [i32 14// CHECK: @__const.test2.x = private unnamed_addr constant [13 x i32] [i32 1,5// CHECK: @test5w = {{(dso_local )?}}global { i32, [4 x i8] } { i32 2, [4 x i8] zeroinitializer }6// CHECK: @test5y = {{(dso_local )?}}global { double } { double 7.300000e+0{{[0]*}}1 }7 8// CHECK: @__const.test6.x = private unnamed_addr constant { i8, i8, [2 x i8], i32, i32 } { i8 1, i8 2, [2 x i8] zeroinitializer, i32 3, i32 0 }9 10// CHECK: @test7 = {{(dso_local )?}}global [2 x %struct.test7s] [%struct.test7s { i32 1, i32 2 }, %struct.test7s { i32 4, i32 0 }]11 12void test1(void) {13 // This should codegen as a "@test1.x" global.14 const int x[] = { 1, 2, 3, 4, 6, 8, 9, 10, 123, 231, 123,23 };15 foo(x);16 17// CHECK: @test1()18// CHECK: {{call.*@foo.*@test1.x}}19}20 21 22void test2(void) {23 // This should codegen as a "@test2.x" global + memcpy.24 int x[] = { 1, 2, 3, 4, 6, 8, 9, 10, 123, 231, 123,23, 24 };25 foo(x);26 27 // CHECK: @test2()28 // CHECK: %x = alloca [13 x i32]29 // CHECK: call void @llvm.memcpy30 // CHECK: call{{.*}}@foo{{.*}}ptr noundef %31}32 33 34void test3(void) {35 // This should codegen as a memset.36 int x[100] = { 0 };37 foo(x);38 39 // CHECK: @test3()40 // CHECK: %x = alloca [100 x i32]41 // CHECK: call void @llvm.memset42}43 44void test4(void) {45 char a[10] = "asdf";46 char b[10] = { "asdf" };47 // CHECK: @test4()48 // CHECK: %a = alloca [10 x i8]49 // CHECK: %b = alloca [10 x i8]50 // CHECK: call void @llvm.memcpy51 // CHECK: call void @llvm.memcpy52}53 54 55union test5u { int i; double d; };56 57void test5(void) {58 union test5u ola = (union test5u) 351;59 union test5u olb = (union test5u) 1.0;60}61 62union test5u test5w = (union test5u)2;63union test5u test5y = (union test5u)73.0;64 65 66 67// PR6660 - sqlite miscompile68struct SelectDest {69 unsigned char eDest;70 unsigned char affinity;71 int iParm;72 int iMem;73};74 75void test6(void) {76 struct SelectDest x = {1, 2, 3};77 test6f(&x);78}79 80struct test7s { int a; int b; } test7[] = {81 {1, 2},82 {4},83};84 85#pragma pack(push, 2)86struct test8s { int f0; char f1; } test8g = {};87 88 89// PR751990 91struct S {92 void (*x) (struct S *);93};94 95extern struct S *global_dc;96void cp_diagnostic_starter(struct S *);97 98void init_error(void) {99 global_dc->x = cp_diagnostic_starter;100}101 102 103 104// ABI crash in recursive struct-through-function-pointer.105typedef struct {106 int x5a;107} x5;108 109typedef struct x2 *x0;110typedef long (*x1)(x0 x0a, x5 x6);111struct x2 {112 x1 x4;113};114long x3(x0 x0a, x5 a) {115 return x0a->x4(x0a, a);116}117