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-rw-r--r--test/CodeGen/exprs.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/test/CodeGen/exprs.c b/test/CodeGen/exprs.c
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+// RUN: clang-cc %s -emit-llvm -o -
+
+// PR1895
+// sizeof function
+int zxcv(void);
+int x=sizeof(zxcv);
+int y=__alignof__(zxcv);
+
+
+void *test(int *i) {
+ short a = 1;
+ i += a;
+ i + a;
+ a + i;
+}
+
+_Bool test2b;
+int test2() {if (test2b);}
+
+// PR1921
+int test3() {
+ const unsigned char *bp;
+ bp -= (short)1;
+}
+
+// PR2080 - sizeof void
+int t1 = sizeof(void);
+int t2 = __alignof__(void);
+void test4() {
+ t1 = sizeof(void);
+ t2 = __alignof__(void);
+
+ t1 = sizeof(test4());
+ t2 = __alignof__(test4());
+}
+
+// 'const float' promotes to double in varargs.
+int test5(const float x, float float_number) {
+ return __builtin_isless(x, float_number);
+}
+
+// this one shouldn't fold
+int ola() {
+ int a=2;
+ if ((0, (int)a) & 2) { return 1; }
+ return 2;
+}
+
+// this one shouldn't fold as well
+void eMaisUma() {
+ double t[1];
+ if (*t)
+ return;
+}
+
+// rdar://6520707
+void f0(void (*fp)(void), void (*fp2)(void)) {
+ int x = fp - fp2;
+}
+
+// noop casts as lvalues.
+struct X {
+ int Y;
+};
+struct X foo();
+int bar() {
+ return ((struct X)foo()).Y + 1;
+}
+
+// PR3809: INC/DEC of function pointers.
+void f2(void);
+unsigned f1(void) {
+ void (*fp)(void) = f2;
+
+ ++fp;
+ fp++;
+ --fp;
+ fp--;
+ return (unsigned) fp;
+}
+
+union f3_x {int x; float y;};
+int f3() {return ((union f3_x)2).x;}
+
+union f4_y {int x; _Complex float y;};
+_Complex float f4() {return ((union f4_y)(_Complex float)2.0).y;}
+
+struct f5_a { int a; } f5_a;
+union f5_z {int x; struct f5_a y;};
+struct f5_a f5() {return ((union f5_z)f5_a).y;}
+
+// ?: in "lvalue"
+struct s6 { int f0; };
+int f6(int a0, struct s6 a1, struct s6 a2) {
+ return (a0 ? a1 : a2).f0;
+}
+
+// PR4026
+void f7() {
+ __func__;
+}
+
+// PR4067
+int f8() {
+ return ({ foo(); }).Y;
+}
+
+// rdar://6880558
+struct S;
+struct C {
+ int i;
+ struct S *tab[];
+};
+struct S { struct C c; };
+void f9(struct S *x) {
+ foo(((void)1, x->c).tab[0]);
+}
+
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