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Diffstat (limited to 'src/test/codegen/match-unoptimized.rs')
-rw-r--r-- | src/test/codegen/match-unoptimized.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/codegen/match-unoptimized.rs b/src/test/codegen/match-unoptimized.rs new file mode 100644 index 000000000..be40b29e3 --- /dev/null +++ b/src/test/codegen/match-unoptimized.rs @@ -0,0 +1,23 @@ +// compile-flags: -C no-prepopulate-passes -Copt-level=0 + +#![crate_type = "lib"] + +#[repr(u16)] +pub enum E2 { + A = 13, + B = 42, +} + +// For unoptimized code we produce a `br` instead of a `switch`. Compare with +// `src/test/codegen/match-optimized.rs` + +// CHECK-LABEL: @exhaustive_match_2 +#[no_mangle] +pub fn exhaustive_match_2(e: E2) -> u8 { + // CHECK: %[[CMP:.+]] = icmp eq i16 %{{.+}}, 13 + // CHECK-NEXT: br i1 %[[CMP:.+]], + match e { + E2::A => 0, + E2::B => 1, + } +} |