gcc/testsuite/gcc.target/riscv/sign-extend.c

   1 /* { dg-do compile { target { riscv64*-*-* } } } */
   2 /* { dg-options "-march=rv64gc -mabi=lp64" } */
   3 /* { dg-skip-if "" { *-*-* } { "-O0" } } */
   4
   5 unsigned
   6 foo1 (unsigned x, unsigned y, unsigned z)
   7 {
   8   return x & (y - z);
   9 }
  10
  11 int
  12 foo2 (int x, int y, int z)
  13 {
  14   return x & (y - z);
  15 }
  16
  17 unsigned
  18 foo3 (unsigned x, unsigned y, unsigned z)
  19 {
  20   return x & (y * z);
  21 }
  22
  23 int
  24 foo4 (int x, int y, int z)
  25 {
  26   return x & (y * z);
  27 }
  28
  29 unsigned
  30 foo5 (unsigned x, unsigned y)
  31 {
  32   return x & (y / x);
  33 }
  34
  35 int
  36 foo6 (int x, int y)
  37 {
  38   return x & (y / x);
  39 }
  40
  41 unsigned
  42 foo7 (unsigned x, unsigned y)
  43 {
  44   return x & (y % x);
  45 }
  46
  47 int
  48 foo8 (int x, int y)
  49 {
  50   return x & (y % x);
  51 }
  52
  53 int
  54 foo9 (int x)
  55 {
  56   return x & (-x);
  57 }
  58
  59 unsigned
  60 foo10 (unsigned x, unsigned y)
  61 {
  62   return x & (y + x);
  63 }
  64
  65
  66 unsigned
  67 foo11 (unsigned x)
  68 {
  69   return x & (15 + x);
  70 }
  71
  72 /* { dg-final { scan-assembler-times "subw" 2 } } */
  73 /* { dg-final { scan-assembler-times "addw" 1 } } */
  74 /* { dg-final { scan-assembler-times "addiw" 1 } } */
  75 /* { dg-final { scan-assembler-times "mulw" 2 } } */
  76 /* { dg-final { scan-assembler-times "divw" 1 } } */
  77 /* { dg-final { scan-assembler-times "divuw" 1 } } */
  78 /* { dg-final { scan-assembler-times "remw" 1 } } */
  79 /* { dg-final { scan-assembler-times "remuw" 1 } } */
  80 /* { dg-final { scan-assembler-times "negw" 1 } } */
  81 /* { dg-final { scan-assembler-not "sext.w" } } */