/* PR tree-optimization/83431 - Verify that snprintf (0, 0, "%s", with an argument that's a conditional expression evaluates to the expected result regardless of the order of the expression operands. { dg-do run } { dg-skip-if "UNIX 2003 return behavior not supported" { hppa*-*-hpux* } } { dg-options "-O2 -Wall" } */ #include "strlenopt.h" #define A(expr) \ ((expr) \ ? (void)0 \ : (__builtin_printf ("assertion failed on line %i: %s\n", \ __LINE__, #expr), \ __builtin_abort ())) const char gs0[] = ""; const char gs3[] = "123"; char gc; char ga5[7]; struct S { char n, ma7[7], max[]; }; __attribute__ ((noclone, noinline, noipa)) void equal_4_gs0_gs3_ga5_m1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs0 : 0 < i ? gs3 : ga5; A (snprintf (0, 0, "%s", p) == 0); } __attribute__ ((noclone, noinline, noipa)) void equal_4_gs0_gs3_ga5_0 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs0 : 0 < i ? gs3 : ga5; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void equal_4_gs0_gs3_ga5_p1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs0 : 0 < i ? gs3 : ga5; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void equal_4_gs0_ga5_gs3_m1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs0 : 0 < i ? ga5 : gs3; A (snprintf (0, 0, "%s", p) == 0); } __attribute__ ((noclone, noinline, noipa)) void equal_4_gs0_ga5_gs3_0 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs0 : 0 < i ? ga5 : gs3; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void equal_4_gs0_ga5_gs3_p1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs0 : 0 < i ? ga5 : gs3; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void equal_4_ga5_gs0_gs3_m1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? ga5 : 0 < i ? gs0 : gs3; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void equal_4_ga5_gs0_gs3_0 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? ga5 : 0 < i ? gs0 : gs3; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void equal_4_ga5_gs0_gs3_p1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? ga5 : 0 < i ? gs0 : gs3; A (snprintf (0, 0, "%s", p) == 0); } __attribute__ ((noclone, noinline, noipa)) void equal_4_ga5_gs3_gs0_m1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? ga5 : 0 < i ? gs3 : gs0; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void equal_4_ga5_gs3_gs0_0 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? ga5 : 0 < i ? gs3 : gs0; A (snprintf (0, 0, "%s", p) == 0); } __attribute__ ((noclone, noinline, noipa)) void equal_4_ga5_gs3_gs0_p1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? ga5 : 0 < i ? gs3 : gs0; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void equal_4_gs3_gs0_ga5_m1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs3 : 0 < i ? gs0 : ga5; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void equal_4_gs3_gs0_ga5_0 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs3 : 0 < i ? gs0 : ga5; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void equal_4_gs3_gs0_ga5_p1 (int i) { strcpy (ga5, "1234"); const char *p = i < 0 ? gs3 : 0 < i ? gs0 : ga5; A (snprintf (0, 0, "%s", p) == 0); } /* Similar to the above but with memcpy creating a string at least four characters long, and the address of the NUL character. */ __attribute__ ((noclone, noinline, noipa)) void min_4_gc_gs3_ga5_m1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? &gc : 0 < i ? gs3 : ga5; A (snprintf (0, 0, "%s", p) == 0); } __attribute__ ((noclone, noinline, noipa)) void min_4_gc_gs3_ga5_0 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? &gc : 0 < i ? gs3 : ga5; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void min_4_gc_gs3_ga5_p1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? &gc : 0 < i ? gs3 : ga5; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void min_4_gc_ga5_gs3_m1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? &gc : 0 < i ? ga5 : gs3; A (snprintf (0, 0, "%s", p) == 0); } __attribute__ ((noclone, noinline, noipa)) void min_4_gc_ga5_gs3_0 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? &gc : 0 < i ? ga5 : gs3; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void min_4_gc_ga5_gs3_p1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? &gc : 0 < i ? ga5 : gs3; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void min_4_ga5_gc_gs3_m1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? ga5 : 0 < i ? &gc : gs3; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void min_4_ga5_gc_gs3_0 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? ga5 : 0 < i ? &gc : gs3; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void min_4_ga5_gc_gs3_p1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? ga5 : 0 < i ? &gc : gs3; A (snprintf (0, 0, "%s", p) == 0); } __attribute__ ((noclone, noinline, noipa)) void min_4_ga5_gs3_gc_m1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? ga5 : 0 < i ? gs3 : &gc; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void min_4_ga5_gs3_gc_0 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? ga5 : 0 < i ? gs3 : &gc; A (snprintf (0, 0, "%s", p) == 0); } __attribute__ ((noclone, noinline, noipa)) void min_4_ga5_gs3_gc_p1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? ga5 : 0 < i ? gs3 : &gc; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void min_4_gs3_gc_ga5_m1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? gs3 : 0 < i ? &gc : ga5; A (snprintf (0, 0, "%s", p) == 3); } __attribute__ ((noclone, noinline, noipa)) void min_4_gs3_gc_ga5_0 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? gs3 : 0 < i ? &gc : ga5; A (snprintf (0, 0, "%s", p) == 4); } __attribute__ ((noclone, noinline, noipa)) void min_4_gs3_gc_ga5_p1 (int i) { gc = 0; memcpy (ga5, "1234", 4); const char *p = i < 0 ? gs3 : 0 < i ? &gc : ga5; A (snprintf (0, 0, "%s", p) == 0); } int main (void) { equal_4_gs0_gs3_ga5_m1 (-1); equal_4_gs0_gs3_ga5_0 ( 0); equal_4_gs0_gs3_ga5_p1 (+1); equal_4_gs0_ga5_gs3_m1 (-1); equal_4_gs0_ga5_gs3_0 ( 0); equal_4_gs0_ga5_gs3_p1 (+1); equal_4_ga5_gs0_gs3_m1 (-1); equal_4_ga5_gs0_gs3_0 ( 0); equal_4_ga5_gs0_gs3_p1 (+1); equal_4_ga5_gs3_gs0_m1 (-1); equal_4_ga5_gs3_gs0_0 ( 0); equal_4_ga5_gs3_gs0_p1 (+1); equal_4_gs3_gs0_ga5_m1 (-1); equal_4_gs3_gs0_ga5_0 ( 0); equal_4_gs3_gs0_ga5_p1 (+1); /* Same as aabove but with memcpy creating a string at least four characters long. */ memset (ga5, 0, sizeof ga5); min_4_gc_gs3_ga5_m1 (-1); memset (ga5, 0, sizeof ga5); min_4_gc_gs3_ga5_0 ( 0); memset (ga5, 0, sizeof ga5); min_4_gc_gs3_ga5_p1 (+1); memset (ga5, 0, sizeof ga5); min_4_gc_ga5_gs3_m1 (-1); memset (ga5, 0, sizeof ga5); min_4_gc_ga5_gs3_0 ( 0); memset (ga5, 0, sizeof ga5); min_4_gc_ga5_gs3_p1 (+1); memset (ga5, 0, sizeof ga5); min_4_ga5_gc_gs3_m1 (-1); memset (ga5, 0, sizeof ga5); min_4_ga5_gc_gs3_0 ( 0); memset (ga5, 0, sizeof ga5); min_4_ga5_gc_gs3_p1 (+1); memset (ga5, 0, sizeof ga5); min_4_ga5_gs3_gc_m1 (-1); memset (ga5, 0, sizeof ga5); min_4_ga5_gs3_gc_0 ( 0); memset (ga5, 0, sizeof ga5); min_4_ga5_gs3_gc_p1 (+1); memset (ga5, 0, sizeof ga5); min_4_gs3_gc_ga5_m1 (-1); memset (ga5, 0, sizeof ga5); min_4_gs3_gc_ga5_0 ( 0); memset (ga5, 0, sizeof ga5); min_4_gs3_gc_ga5_p1 (+1); }