diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c new file mode 100644 index 00000000000..c338e30d01a --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c @@ -0,0 +1,53 @@ +/* { dg-do compile } */ +/* { dg-options "-mno-speculate-indirect-jumps" } */ +/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */ + +/* Test for deliberate misprediction of jump tables. */ + +void bar (void); + +int foo (int x) +{ + int a; + + switch (x) + { + default: + a = -1; + break; + case 0: + a = x * x; + break; + case 1: + a = x + 1; + break; + case 2: + a = x + x; + break; + case 3: + a = x << 3; + break; + case 4: + a = x >> 1; + break; + case 5: + a = x; + break; + case 6: + a = 0; + break; + case 7: + a = x * x + x; + break; + } + + bar(); + + return a; +} + +/* The following assumes CR7 as the first chosen volatile. */ + +/* { dg-final { scan-assembler "crset 30" } } */ +/* { dg-final { scan-assembler "beqctr- 7" } } */ +/* { dg-final { scan-assembler {b \$} } } */ |