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-rw-r--r--test/lit/passes/code-folding.wast44
-rw-r--r--test/lit/passes/flatten_all-features.wast12
-rw-r--r--test/lit/passes/optimize-instructions-ignore-traps.wast2
-rw-r--r--test/lit/passes/optimize-instructions-mvp.wast30
-rw-r--r--test/lit/passes/unsubtyping.wast40
5 files changed, 83 insertions, 45 deletions
diff --git a/test/lit/passes/code-folding.wast b/test/lit/passes/code-folding.wast
index 007aa5909..b256b236c 100644
--- a/test/lit/passes/code-folding.wast
+++ b/test/lit/passes/code-folding.wast
@@ -743,12 +743,20 @@
)
;; CHECK: (func $unreachable-if (type $0)
- ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (if
;; CHECK-NEXT: (unreachable)
- ;; CHECK-NEXT: )
- ;; CHECK-NEXT: (nop)
- ;; CHECK-NEXT: (drop
- ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $unreachable-if
@@ -773,14 +781,17 @@
;; CHECK-NEXT: (if
;; CHECK-NEXT: (unreachable)
;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (else
;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
- ;; CHECK-NEXT: (drop
- ;; CHECK-NEXT: (i32.const 1)
- ;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $unreachable-if-suffix
(if
@@ -800,16 +811,13 @@
)
;; CHECK: (func $unreachable-if-concrete-arms (type $0)
- ;; CHECK-NEXT: (drop
- ;; CHECK-NEXT: (block (result i32)
- ;; CHECK-NEXT: (if
- ;; CHECK-NEXT: (unreachable)
- ;; CHECK-NEXT: (then
- ;; CHECK-NEXT: )
- ;; CHECK-NEXT: (else
- ;; CHECK-NEXT: (nop)
- ;; CHECK-NEXT: )
- ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (if (result i32)
+ ;; CHECK-NEXT: (unreachable)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: (nop)
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
diff --git a/test/lit/passes/flatten_all-features.wast b/test/lit/passes/flatten_all-features.wast
index 5db45e272..b601b8a12 100644
--- a/test/lit/passes/flatten_all-features.wast
+++ b/test/lit/passes/flatten_all-features.wast
@@ -620,7 +620,6 @@
;; CHECK-NEXT: (local $1 i32)
;; CHECK-NEXT: (local $2 i32)
;; CHECK-NEXT: (local $3 i32)
- ;; CHECK-NEXT: (local $4 i32)
;; CHECK-NEXT: (block $x
;; CHECK-NEXT: (block
;; CHECK-NEXT: (local.set $0
@@ -646,18 +645,13 @@
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
- ;; CHECK-NEXT: (local.set $3
- ;; CHECK-NEXT: (local.get $2)
- ;; CHECK-NEXT: )
- ;; CHECK-NEXT: (local.set $1
- ;; CHECK-NEXT: (local.get $3)
- ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (unreachable)
;; CHECK-NEXT: )
- ;; CHECK-NEXT: (local.set $4
+ ;; CHECK-NEXT: (local.set $3
;; CHECK-NEXT: (local.get $1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (return
- ;; CHECK-NEXT: (local.get $4)
+ ;; CHECK-NEXT: (local.get $3)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $a13 (result i32)
diff --git a/test/lit/passes/optimize-instructions-ignore-traps.wast b/test/lit/passes/optimize-instructions-ignore-traps.wast
index 96ea16449..8902cbc28 100644
--- a/test/lit/passes/optimize-instructions-ignore-traps.wast
+++ b/test/lit/passes/optimize-instructions-ignore-traps.wast
@@ -213,7 +213,7 @@
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
- ;; CHECK-NEXT: (local.set $0
+ ;; CHECK-NEXT: (local.tee $0
;; CHECK-NEXT: (if (result i32)
;; CHECK-NEXT: (i32.or
;; CHECK-NEXT: (i32.eqz
diff --git a/test/lit/passes/optimize-instructions-mvp.wast b/test/lit/passes/optimize-instructions-mvp.wast
index f18c94c5c..077ecf495 100644
--- a/test/lit/passes/optimize-instructions-mvp.wast
+++ b/test/lit/passes/optimize-instructions-mvp.wast
@@ -5754,15 +5754,13 @@
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
- ;; CHECK-NEXT: (block (result i32)
- ;; CHECK-NEXT: (i32.add
- ;; CHECK-NEXT: (local.get $1)
- ;; CHECK-NEXT: (unreachable)
- ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (i32.add
+ ;; CHECK-NEXT: (local.get $1)
+ ;; CHECK-NEXT: (unreachable)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
- ;; CHECK-NEXT: (block (result i32)
+ ;; CHECK-NEXT: (block
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.tee $0
;; CHECK-NEXT: (local.get $1)
@@ -5775,7 +5773,7 @@
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
- ;; CHECK-NEXT: (if (result i32)
+ ;; CHECK-NEXT: (if
;; CHECK-NEXT: (unreachable)
;; CHECK-NEXT: (then
;; CHECK-NEXT: (i32.add
@@ -15718,23 +15716,21 @@
)
)
)
- ;; CHECK: (func $if-dont-change-to-unreachable (param $x i32) (param $y i32) (param $z i32) (result i32)
- ;; CHECK-NEXT: (if (result i32)
- ;; CHECK-NEXT: (local.get $x)
- ;; CHECK-NEXT: (then
- ;; CHECK-NEXT: (return
+ ;; CHECK: (func $if-unreachable-return-identical (param $x i32) (param $y i32) (param $z i32) (result i32)
+ ;; CHECK-NEXT: (return
+ ;; CHECK-NEXT: (if (result i32)
+ ;; CHECK-NEXT: (local.get $x)
+ ;; CHECK-NEXT: (then
;; CHECK-NEXT: (local.get $y)
;; CHECK-NEXT: )
- ;; CHECK-NEXT: )
- ;; CHECK-NEXT: (else
- ;; CHECK-NEXT: (return
+ ;; CHECK-NEXT: (else
;; CHECK-NEXT: (local.get $z)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
- (func $if-dont-change-to-unreachable (param $x i32) (param $y i32) (param $z i32) (result i32)
- ;; if we move the returns outside, we'd become unreachable; avoid that.
+ (func $if-unreachable-return-identical (param $x i32) (param $y i32) (param $z i32) (result i32)
+ ;; We can move the returns outside because we are already unreachable.
(if (result i32)
(local.get $x)
(then
diff --git a/test/lit/passes/unsubtyping.wast b/test/lit/passes/unsubtyping.wast
index 97a2dd59a..149647165 100644
--- a/test/lit/passes/unsubtyping.wast
+++ b/test/lit/passes/unsubtyping.wast
@@ -1815,3 +1815,43 @@
)
)
)
+
+;; Regression test for a crash on ifs with unreachable conditions and tuple arms.
+(module
+ ;; CHECK: (type $0 (func (result i32 i64)))
+
+ ;; CHECK: (func $test (type $0) (result i32 i64)
+ ;; CHECK-NEXT: (if (type $0) (result i32 i64)
+ ;; CHECK-NEXT: (unreachable)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (tuple.make 2
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: (i64.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: (tuple.make 2
+ ;; CHECK-NEXT: (i32.const 2)
+ ;; CHECK-NEXT: (i64.const 3)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $test (result i32 i64)
+ (if (result i32 i64)
+ (unreachable)
+ (then
+ (tuple.make 2
+ (i32.const 0)
+ (i64.const 1)
+ )
+ )
+ (else
+ (tuple.make 2
+ (i32.const 2)
+ (i64.const 3)
+ )
+ )
+ )
+ )
+)
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-05 10:32:30 +0000