1 files changed, 115 insertions, 0 deletions
diff --git a/tests/coverage/branch/if.coverage b/tests/coverage/branch/if.coverage
new file mode 100644
index 00000000000..2a9a408b16a
--- /dev/null
+++ b/tests/coverage/branch/if.coverage
@@ -0,0 +1,115 @@
+   LL|       |#![feature(coverage_attribute)]
+   LL|       |//@ edition: 2021
+   LL|       |//@ compile-flags: -Zcoverage-options=branch
+   LL|       |//@ llvm-cov-flags: --show-branches=count
+   LL|       |
+   LL|       |macro_rules! no_merge {
+   LL|       |    () => {
+   LL|       |        for _ in 0..1 {}
+   LL|       |    };
+   LL|       |}
+   LL|       |
+   LL|      3|fn branch_not(a: bool) {
+   LL|      3|    no_merge!();
+   LL|       |
+   LL|      3|    if a {
+  ------------------
+  |  Branch (LL:8): [True: 2, False: 1]
+  ------------------
+   LL|      2|        say("a")
+   LL|      1|    }
+   LL|      3|    if !a {
+  ------------------
+  |  Branch (LL:8): [True: 1, False: 2]
+  ------------------
+   LL|      1|        say("not a");
+   LL|      2|    }
+   LL|      3|    if !!a {
+  ------------------
+  |  Branch (LL:8): [True: 2, False: 1]
+  ------------------
+   LL|      2|        say("not not a");
+   LL|      2|    }
+                   ^1
+   LL|      3|    if !!!a {
+  ------------------
+  |  Branch (LL:8): [True: 1, False: 2]
+  ------------------
+   LL|      1|        say("not not not a");
+   LL|      2|    }
+   LL|      3|}
+   LL|       |
+   LL|      3|fn branch_not_as(a: bool) {
+   LL|      3|    no_merge!();
+   LL|       |
+   LL|      3|    if !(a as bool) {
+  ------------------
+  |  Branch (LL:8): [True: 1, False: 2]
+  ------------------
+   LL|      1|        say("not (a as bool)");
+   LL|      2|    }
+   LL|      3|    if !!(a as bool) {
+  ------------------
+  |  Branch (LL:8): [True: 2, False: 1]
+  ------------------
+   LL|      2|        say("not not (a as bool)");
+   LL|      2|    }
+                   ^1
+   LL|      3|    if !!!(a as bool) {
+  ------------------
+  |  Branch (LL:8): [True: 1, False: 2]
+  ------------------
+   LL|      1|        say("not not (a as bool)");
+   LL|      2|    }
+   LL|      3|}
+   LL|       |
+   LL|     15|fn branch_and(a: bool, b: bool) {
+   LL|     15|    no_merge!();
+   LL|       |
+   LL|     15|    if a && b {
+                          ^12
+  ------------------
+  |  Branch (LL:8): [True: 12, False: 3]
+  |  Branch (LL:13): [True: 8, False: 4]
+  ------------------
+   LL|      8|        say("both");
+   LL|      8|    } else {
+   LL|      7|        say("not both");
+   LL|      7|    }
+   LL|     15|}
+   LL|       |
+   LL|     15|fn branch_or(a: bool, b: bool) {
+   LL|     15|    no_merge!();
+   LL|       |
+   LL|     15|    if a || b {
+                          ^3
+  ------------------
+  |  Branch (LL:8): [True: 12, False: 3]
+  |  Branch (LL:13): [True: 2, False: 1]
+  ------------------
+   LL|     14|        say("either");
+   LL|     14|    } else {
+   LL|      1|        say("neither");
+   LL|      1|    }
+   LL|     15|}
+   LL|       |
+   LL|       |#[coverage(off)]
+   LL|       |fn say(message: &str) {
+   LL|       |    core::hint::black_box(message);
+   LL|       |}
+   LL|       |
+   LL|       |#[coverage(off)]
+   LL|       |fn main() {
+   LL|       |    for a in [false, true, true] {
+   LL|       |        branch_not(a);
+   LL|       |        branch_not_as(a);
+   LL|       |    }
+   LL|       |
+   LL|       |    for a in [false, true, true, true, true] {
+   LL|       |        for b in [false, true, true] {
+   LL|       |            branch_and(a, b);
+   LL|       |            branch_or(a, b);
+   LL|       |        }
+   LL|       |    }
+   LL|       |}
+