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-rw-r--r--test/lit/passes/rse-eh.wast358
1 files changed, 358 insertions, 0 deletions
diff --git a/test/lit/passes/rse-eh.wast b/test/lit/passes/rse-eh.wast
index e8b9570ed..8be0cfa82 100644
--- a/test/lit/passes/rse-eh.wast
+++ b/test/lit/passes/rse-eh.wast
@@ -452,4 +452,362 @@
;; by one of the catches and it will set the local to 1.
(local.set $x (i32.const 1))
)
+
+ ;; CHECK: (func $catchless-try
+ ;; CHECK-NEXT: (local $x i32)
+ ;; CHECK-NEXT: (try $try
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (call $foo)
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $catchless-try
+ (local $x i32)
+ (try
+ (do
+ (call $foo)
+ (local.set $x (i32.const 1))
+ )
+ )
+ ;; The only way we end up here is when (call $foo) does not throw, because
+ ;; if (call $foo) throws, it will throw to the caller because it is within
+ ;; a catchless try. In that case the local.set after (call $foo) would have
+ ;; run before this, so this can be dropped.
+ (local.set $x (i32.const 1))
+ )
+
+ ;; CHECK: (func $try-delegate0
+ ;; CHECK-NEXT: (local $x i32)
+ ;; CHECK-NEXT: (try $l0
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try2
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (throw $e
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (delegate $l0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $try-delegate0
+ (local $x i32)
+ (try $l0
+ (do
+ (try
+ (do
+ (try
+ (do
+ (throw $e (i32.const 0))
+ )
+ (delegate $l0)
+ )
+ )
+ (catch_all)
+ )
+ )
+ (catch_all
+ (local.set $x (i32.const 1))
+ )
+ )
+ ;; The innermost try has a delegate, which delegates to the outermost try's
+ ;; catch_all, which has the same local.set. So this can be dropped.
+ (local.set $x (i32.const 1))
+ )
+
+ ;; CHECK: (func $try-delegate1
+ ;; CHECK-NEXT: (local $x i32)
+ ;; CHECK-NEXT: (try $l0
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try3
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (throw $e
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (delegate $l0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $try-delegate1
+ (local $x i32)
+ (try $l0
+ (do
+ (try
+ (do
+ (try
+ (do
+ (throw $e (i32.const 0))
+ )
+ (delegate $l0)
+ )
+ )
+ (catch_all
+ (local.set $x (i32.const 1))
+ )
+ )
+ )
+ (catch_all)
+ )
+ ;; The middle try's catch_all has the same local.set, but it is skipped
+ ;; because the innermost try-delegate delegates to the outer try while
+ ;; skipping the middle try-catch_all. So this should NOT be dropped.
+ (local.set $x (i32.const 1))
+ )
+
+ ;; CHECK: (func $try-delegate2
+ ;; CHECK-NEXT: (local $x i32)
+ ;; CHECK-NEXT: (try $l0
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try4
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (throw $e
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (delegate 2)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $try-delegate2
+ (local $x i32)
+ (try $l0
+ (do
+ (try
+ (do
+ (try
+ (do
+ (throw $e (i32.const 0))
+ )
+ (delegate 2) ;; delegate to caller
+ )
+ )
+ (catch_all
+ (local.set $x (i32.const 1))
+ )
+ )
+ )
+ (catch_all
+ (local.set $x (i32.const 1))
+ )
+ )
+ ;; The innermost try-delegate delegates to the caller, bypassing all
+ ;; local.sets in the middle and the outermost try-catch_alls. So this should
+ ;; NOT be dropped. (Instead this is unreachable, but that's DCE's work)
+ (local.set $x (i32.const 1))
+ )
+
+ ;; CHECK: (func $try-delegate3
+ ;; CHECK-NEXT: (local $x i32)
+ ;; CHECK-NEXT: (try $l0
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $l1
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try5
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try6
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (throw $e
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (delegate $l1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (delegate $l0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $try-delegate3
+ (local $x i32)
+ (try $l0
+ (do
+ (try
+ (do
+ (try $l1
+ (do
+ (try
+ (do
+ (try
+ (do
+ (throw $e (i32.const 0))
+ )
+ (delegate $l1)
+ )
+ )
+ (catch_all
+ (local.set $x (i32.const 1))
+ )
+ )
+ )
+ (delegate $l0)
+ )
+ )
+ (catch_all
+ (local.set $x (i32.const 1))
+ )
+ )
+ )
+ (catch_all)
+ )
+ ;; The innermost try delegates to $l1, which in turn delegates to $l0,
+ ;; skipping all local.sets in between. So this should NOT be dropped.
+ (local.set $x (i32.const 1))
+ )
+
+ ;; CHECK: (func $try-delegate4
+ ;; CHECK-NEXT: (local $x i32)
+ ;; CHECK-NEXT: (try $l0
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $l1
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try7
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (try $try8
+ ;; CHECK-NEXT: (do
+ ;; CHECK-NEXT: (throw $e
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (delegate $l1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (delegate $l0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (catch_all
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $try-delegate4
+ (local $x i32)
+ (try $l0
+ (do
+ (try
+ (do
+ (try $l1
+ (do
+ (try
+ (do
+ (try
+ (do
+ (throw $e (i32.const 0))
+ )
+ (delegate $l1)
+ )
+ )
+ (catch_all)
+ )
+ )
+ (delegate $l0)
+ )
+ )
+ (catch_all)
+ )
+ )
+ (catch_all
+ (local.set $x (i32.const 1))
+ )
+ )
+ ;; The innermost try delegates to $l1, which in turn delgates to $l0, whose
+ ;; catch_all runs the same local.set. So this can be dropped.
+ (local.set $x (i32.const 1))
+ )
)
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