diff options
| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-21 14:34:12 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-22 14:28:48 +0200 |
| commit | a27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch) | |
| tree | b033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/issues/issue-34634.rs | |
| parent | ed93c1783b404d728d4809973a0550eb33cd293f (diff) | |
| download | rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.zip | |
Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/issues/issue-34634.rs')
| -rw-r--r-- | tests/codegen-llvm/issues/issue-34634.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/codegen-llvm/issues/issue-34634.rs b/tests/codegen-llvm/issues/issue-34634.rs new file mode 100644 index 00000000000..d32fa97ec38 --- /dev/null +++ b/tests/codegen-llvm/issues/issue-34634.rs @@ -0,0 +1,16 @@ +// Test that `wrapping_div` only checks divisor once. +// This test checks that there is only a single compare against -1 and -1 is not present as a +// switch case (the second check present until rustc 1.12). +// This test also verifies that a single panic call is generated (for the division by zero case). + +//@ compile-flags: -Copt-level=3 +#![crate_type = "lib"] + +// CHECK-LABEL: @f +#[no_mangle] +pub fn f(x: i32, y: i32) -> i32 { + // CHECK-COUNT-1: icmp eq i32 %y, -1 + // CHECK-COUNT-1: panic + // CHECK-NOT: i32 -1, label + x.wrapping_div(y) +} |
