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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/codegen/issue-34634.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/codegen/issue-34634.rs')
-rw-r--r-- | src/test/codegen/issue-34634.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/test/codegen/issue-34634.rs b/src/test/codegen/issue-34634.rs new file mode 100644 index 000000000..6c18adbcb --- /dev/null +++ b/src/test/codegen/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 agains -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: -O +#![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) +} |