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| 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-118306.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-118306.rs')
| -rw-r--r-- | tests/codegen-llvm/issues/issue-118306.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/codegen-llvm/issues/issue-118306.rs b/tests/codegen-llvm/issues/issue-118306.rs new file mode 100644 index 00000000000..f12dc7cdfe2 --- /dev/null +++ b/tests/codegen-llvm/issues/issue-118306.rs @@ -0,0 +1,22 @@ +//@ compile-flags: -Copt-level=3 +//@ only-x86_64 + +// Test for #118306. +// Make sure we don't create `br` or `select` instructions. + +#![crate_type = "lib"] + +#[no_mangle] +pub fn branchy(input: u64) -> u64 { + // CHECK-LABEL: @branchy( + // CHECK-NEXT: start: + // CHECK-NEXT: [[_2:%.*]] = and i64 [[INPUT:%.*]], 3 + // CHECK-NEXT: [[SWITCH_GEP:%.*]] = getelementptr inbounds{{( nuw)?}} [4 x i64], ptr @switch.table.branchy, i64 0, i64 [[_2]] + // CHECK-NEXT: [[SWITCH_LOAD:%.*]] = load i64, ptr [[SWITCH_GEP]] + // CHECK-NEXT: ret i64 [[SWITCH_LOAD]] + match input % 4 { + 1 | 2 => 1, + 3 => 2, + _ => 0, + } +} |