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| author | Jakub Jelinek <jakub@redhat.com> | 2023-05-09 12:14:18 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2023-05-09 12:52:20 +0200 |
| commit | 7408a0b93e6f6b3ce9b6be17bb9b5d2307f5ecf1 (patch) | |
| tree | 110c0261bfa6ec35479d168bb9d87d37449a1354 | |
| parent | 2835feb9c29de9167c7af19209065357899b808d (diff) | |
| download | gcc-7408a0b93e6f6b3ce9b6be17bb9b5d2307f5ecf1.tar.gz | |
testsuite: Add further testcase for already fixed PR [PR109778]
I came up with a testcase which reproduces all the way to r10-7469.
LTO to avoid early inlining it, so that ccp handles rotates and not
shifts before they are turned into rotates.
2023-05-09 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/109778
* gcc.dg/lto/pr109778_0.c: New test.
* gcc.dg/lto/pr109778_1.c: New file.
(cherry picked from commit c2cf2dc988eb93551fa1c01d3f8d73ef21f39dc5)
| -rw-r--r-- | gcc/testsuite/gcc.dg/lto/pr109778_0.c | 22 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/lto/pr109778_1.c | 7 |
2 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/lto/pr109778_0.c b/gcc/testsuite/gcc.dg/lto/pr109778_0.c new file mode 100644 index 00000000000..3c6e1b8f7b7 --- /dev/null +++ b/gcc/testsuite/gcc.dg/lto/pr109778_0.c @@ -0,0 +1,22 @@ +/* PR tree-optimization/109778 */ +/* { dg-lto-do run } */ +/* { dg-lto-options { "-O2 -flto" } } */ +/* { dg-require-effective-target int32 } */ + +int bar (int); + +__attribute__((noipa)) int +foo (int x) +{ + x = bar (x); + x = (x << 16) | (int) ((unsigned) x >> 16); + return x & 0x10000000; +} + +int +main () +{ + if (foo (0) || foo (-1)) + __builtin_abort (); + return 0; +} diff --git a/gcc/testsuite/gcc.dg/lto/pr109778_1.c b/gcc/testsuite/gcc.dg/lto/pr109778_1.c new file mode 100644 index 00000000000..d18a7209983 --- /dev/null +++ b/gcc/testsuite/gcc.dg/lto/pr109778_1.c @@ -0,0 +1,7 @@ +int +bar (int x) +{ + x &= 0x22222222; + x |= (int) 0xf1234567U; + return x; +} |