/* Test to verify that --param ssa_name_def_chain_limit can be used to limit the maximum number of SSA_NAME assignments the warning follows. { dg-do compile } { dg-options "-O2 -Wall --param ssa-name-def-chain-limit=4" } */ #define NOIPA __attribute__ ((noipa)) const char a0[] = ""; const char a1[] = "1"; const char a2[] = "12"; const char a3[] = "123"; const char a4[] = "1234"; const char a5[] = "12345"; const char a6[] = "123456"; const char a7[] = "1234567"; const char a8[] = "12345678"; const char a9[] = "123456789"; void f (const char*, ...); int i0, i1, i2, i3, i4, i5, i6, i7, i8; NOIPA int g2 (int i) { if (i < 1) i = 1; const char *p0 = a9; const char *p1 = p0 + i; const char *p2 = p1 + i; f (p0, p1, p2); return p2[8]; // { dg-warning "\\\[-Warray-bounds]" } } NOIPA int g3 (int i) { if (i < 1) i = 1; const char *p0 = a9; const char *p1 = p0 + i; const char *p2 = p1 + i; const char *p3 = p2 + i; f (p0, p1, p2, p3); return p3[7]; // { dg-warning "\\\[-Warray-bounds]" } } NOIPA int g4 (int i) { if (i < 1) i = 1; const char *p0 = a9; const char *p1 = p0 + i; const char *p2 = p1 + i; const char *p3 = p2 + i; const char *p4 = p3 + i; f (p0, p1, p2, p3, p4); return p4[6]; // { dg-warning "\\\[-Warray-bounds]" } } NOIPA int g5 (int i) { if (i < 1) i = 1; const char *p0 = a9; const char *p1 = p0 + i; const char *p2 = p1 + i; const char *p3 = p2 + i; const char *p4 = p3 + i; const char *p5 = p4 + i; f (p0, p1, p2, p3, p4, p5); return p5[5]; } NOIPA int g6 (int i) { if (i < 1) i = 1; const char *p0 = a9; const char *p1 = p0 + i; const char *p2 = p1 + i; const char *p3 = p2 + i; const char *p4 = p3 + i; const char *p5 = p4 + i; const char *p6 = p5 + i; f (p0, p1, p2, p3, p4, p5, p6); return p6[4]; } NOIPA int g7 (int i) { if (i < 1) i = 1; const char *p0 = a9; const char *p1 = p0 + i; const char *p2 = p1 + i; const char *p3 = p2 + i; const char *p4 = p3 + i; const char *p5 = p4 + i; const char *p6 = p5 + i; const char *p7 = p6 + i; f (p0, p1, p2, p3, p4, p5, p6, p7); return p7[3]; } NOIPA int g8 (int i) { if (i < 1) i = 1; const char *p0 = a9; const char *p1 = p0 + i; const char *p2 = p1 + i; const char *p3 = p2 + i; const char *p4 = p3 + i; const char *p5 = p4 + i; const char *p6 = p5 + i; const char *p7 = p6 + i; const char *p8 = p7 + i; f (p0, p1, p2, p3, p4, p5, p6, p7, p8); return p8[2]; }