From 631cd5845e8de329d0e227aaa707d7ea228b8f8f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:20:29 +0200 Subject: Merging upstream version 1.70.0+dfsg1. Signed-off-by: Daniel Baumann --- tests/codegen/issues/issue-34634.rs | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 tests/codegen/issues/issue-34634.rs (limited to 'tests/codegen/issues/issue-34634.rs') diff --git a/tests/codegen/issues/issue-34634.rs b/tests/codegen/issues/issue-34634.rs new file mode 100644 index 000000000..f53fa240c --- /dev/null +++ b/tests/codegen/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: -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) +} -- cgit v1.2.3