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-rw-r--r--test/lit/passes/code-folding.wast506
1 files changed, 457 insertions, 49 deletions
diff --git a/test/lit/passes/code-folding.wast b/test/lit/passes/code-folding.wast
index 358167481..007aa5909 100644
--- a/test/lit/passes/code-folding.wast
+++ b/test/lit/passes/code-folding.wast
@@ -1,18 +1,32 @@
;; NOTE: Assertions have been generated by update_lit_checks.py --all-items and should not be edited.
;; NOTE: This test was ported using port_passes_tests_to_lit.py and could be cleaned up.
-;; RUN: foreach %s %t wasm-opt -all --code-folding -S -o - | filecheck %s
+;; RUN: wasm-opt %s -all --code-folding -S -o - | filecheck %s
(module
;; CHECK: (type $0 (func))
;; CHECK: (type $1 (func (result f32)))
+ ;; CHECK: (type $2 (func (result i32)))
+
+ ;; CHECK: (type $3 (func (result anyref)))
+
;; CHECK: (type $13 (func (param f32)))
(type $13 (func (param f32)))
(table 282 282 funcref)
+ ;; CHECK: (type $5 (func (param i32)))
+
+ ;; CHECK: (global $global$0 (mut i32) (i32.const 10))
+
;; CHECK: (memory $0 1 1)
(memory $0 1 1)
+
+ ;; CHECK: (memory $shared 1 1 shared)
+ (memory $shared 1 1 shared)
+
+ (global $global$0 (mut i32) (i32.const 10))
+
;; CHECK: (table $0 282 282 funcref)
;; CHECK: (func $0 (type $0)
@@ -22,7 +36,7 @@
;; CHECK-NEXT: (then
;; CHECK-NEXT: (block $label$3
;; CHECK-NEXT: (call_indirect $0 (type $13)
- ;; CHECK-NEXT: (block $label$4
+ ;; CHECK-NEXT: (block $label$4 (result f32)
;; CHECK-NEXT: (br $label$3)
;; CHECK-NEXT: )
;; CHECK-NEXT: (i32.const 105)
@@ -52,18 +66,15 @@
)
)
)
+
;; CHECK: (func $negative-zero (type $1) (result f32)
;; CHECK-NEXT: (if (result f32)
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: (then
- ;; CHECK-NEXT: (block $label$0 (result f32)
- ;; CHECK-NEXT: (f32.const 0)
- ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (f32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: (else
- ;; CHECK-NEXT: (block $label$1 (result f32)
- ;; CHECK-NEXT: (f32.const -0)
- ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (f32.const -0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
@@ -71,63 +82,173 @@
(if (result f32)
(i32.const 0)
(then
- (block $label$0 (result f32)
+ (block (result f32)
(f32.const 0)
)
)
(else
- (block $label$1 (result f32)
+ (block (result f32)
(f32.const -0)
)
)
)
)
+
;; CHECK: (func $negative-zero-b (type $1) (result f32)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
- ;; CHECK-NEXT: (block $label$0 (result f32)
- ;; CHECK-NEXT: (f32.const -0)
- ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (f32.const -0)
;; CHECK-NEXT: )
(func $negative-zero-b (result f32)
(if (result f32)
(i32.const 0)
(then
- (block $label$0 (result f32)
+ (block (result f32)
(f32.const -0)
)
)
(else
- (block $label$1 (result f32)
+ (block (result f32)
(f32.const -0)
)
)
)
)
- ;; CHECK: (func $negative-zero-c (type $1) (result f32)
- ;; CHECK-NEXT: (drop
+
+ ;; CHECK: (func $positive-zero (type $1) (result f32)
+ ;; CHECK-NEXT: (if (result f32)
;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (f32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: (f32.const 0)
+ ;; CHECK-NEXT: )
;; CHECK-NEXT: )
- ;; CHECK-NEXT: (block $label$0 (result f32)
- ;; CHECK-NEXT: (f32.const 0)
+ ;; CHECK-NEXT: )
+ (func $positive-zero (result f32)
+ ;; This doesn't get optimized because we only look at Ifs with block arms.
+ ;; This simpler case will be optimized by OptimizeInstructions.
+ (if (result f32)
+ (i32.const 0)
+ (then
+ (f32.const 0)
+ )
+ (else
+ (f32.const 0)
+ )
+ )
+ )
+
+ ;; CHECK: (func $positive-zero-names (type $1) (result f32)
+ ;; CHECK-NEXT: (if (result f32)
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (block $l1 (result f32)
+ ;; CHECK-NEXT: (f32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: (block $l2 (result f32)
+ ;; CHECK-NEXT: (f32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
- (func $negative-zero-c (result f32)
+ (func $positive-zero-names (result f32)
+ ;; This one has block arms, but doesn't get optimized because the blocks have
+ ;; names.
(if (result f32)
(i32.const 0)
(then
- (block $label$0 (result f32)
+ (block $l1 (result f32)
(f32.const 0)
)
)
(else
- (block $label$1 (result f32)
+ (block $l2 (result f32)
(f32.const 0)
)
)
)
)
+
+ ;; CHECK: (func $positive-zero-extra-a (type $1) (result f32)
+ ;; CHECK-NEXT: (if
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (f32.const 0)
+ ;; CHECK-NEXT: )
+ (func $positive-zero-extra-a (result f32)
+ (if (result f32)
+ (i32.const 0)
+ (then
+ (nop)
+ (f32.const 0)
+ )
+ (else
+ (f32.const 0)
+ )
+ )
+ )
+
+ ;; CHECK: (func $positive-zero-extra-b (type $1) (result f32)
+ ;; CHECK-NEXT: (if
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (f32.const 0)
+ ;; CHECK-NEXT: )
+ (func $positive-zero-extra-b (result f32)
+ (if (result f32)
+ (i32.const 0)
+ (then
+ (f32.const 0)
+ )
+ (else
+ (nop)
+ (f32.const 0)
+ )
+ )
+ )
+
+ ;; CHECK: (func $positive-zero-extra-c (type $1) (result f32)
+ ;; CHECK-NEXT: (if
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (f32.const 0)
+ ;; CHECK-NEXT: )
+ (func $positive-zero-extra-c (result f32)
+ (if (result f32)
+ (i32.const 0)
+ (then
+ (nop)
+ (nop)
+ (f32.const 0)
+ )
+ (else
+ (nop)
+ (f32.const 0)
+ )
+ )
+ )
+
;; CHECK: (func $break-target-outside-of-return-merged-code (type $0)
;; CHECK-NEXT: (block $label$A
;; CHECK-NEXT: (if
@@ -202,6 +323,7 @@
)
)
)
+
;; CHECK: (func $break-target-inside-all-good (type $0)
;; CHECK-NEXT: (block $folding-inner0
;; CHECK-NEXT: (block $label$A
@@ -269,11 +391,12 @@
)
)
)
+
;; CHECK: (func $leave-inner-block-type (type $0)
;; CHECK-NEXT: (block $label$1
;; CHECK-NEXT: (drop
- ;; CHECK-NEXT: (block $label$2
- ;; CHECK-NEXT: (block
+ ;; CHECK-NEXT: (block $label$2 (result i32)
+ ;; CHECK-NEXT: (br_if $label$2
;; CHECK-NEXT: (unreachable)
;; CHECK-NEXT: (unreachable)
;; CHECK-NEXT: )
@@ -304,54 +427,40 @@
)
)
)
-)
-(module
- ;; CHECK: (type $0 (func (result i32)))
- ;; CHECK: (memory $0 1 1 shared)
- (memory $0 1 1 shared)
- ;; CHECK: (export "func_2224" (func $0))
- (export "func_2224" (func $0))
- ;; CHECK: (func $0 (type $0) (result i32)
+ ;; CHECK: (func $atomic-load-different (type $2) (result i32)
;; CHECK-NEXT: (local $var$0 i32)
;; CHECK-NEXT: (if (result i32)
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: (then
- ;; CHECK-NEXT: (i32.load offset=22
+ ;; CHECK-NEXT: (i32.load $shared offset=22
;; CHECK-NEXT: (local.get $var$0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (else
- ;; CHECK-NEXT: (i32.atomic.load offset=22
+ ;; CHECK-NEXT: (i32.atomic.load $shared offset=22
;; CHECK-NEXT: (local.get $var$0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
- (func $0 (result i32)
+ (func $atomic-load-different (result i32)
(local $var$0 i32)
(if (result i32)
(i32.const 0)
(then
- (i32.load offset=22
+ (i32.load $shared offset=22
(local.get $var$0)
)
)
(else
- (i32.atomic.load offset=22
+ (i32.atomic.load $shared offset=22
(local.get $var$0)
)
)
)
)
-)
-(module
- ;; CHECK: (type $0 (func))
- (type $0 (func))
- ;; CHECK: (type $1 (func (param i32)))
- ;; CHECK: (global $global$0 (mut i32) (i32.const 10))
- (global $global$0 (mut i32) (i32.const 10))
;; CHECK: (func $determinism (type $0)
;; CHECK-NEXT: (block $folding-inner0
;; CHECK-NEXT: (block
@@ -390,7 +499,7 @@
;; CHECK-NEXT: )
;; CHECK-NEXT: (unreachable)
;; CHECK-NEXT: )
- (func $determinism (; 0 ;) (type $0)
+ (func $determinism
(block $label$1
(br_if $label$1
(i32.const 1)
@@ -439,7 +548,8 @@
)
(unreachable)
)
- ;; CHECK: (func $careful-of-the-switch (type $1) (param $0 i32)
+
+ ;; CHECK: (func $careful-of-the-switch (type $5) (param $0 i32)
;; CHECK-NEXT: (block $label$1
;; CHECK-NEXT: (block $label$3
;; CHECK-NEXT: (block $label$5
@@ -481,10 +591,243 @@
(unreachable)
)
)
-)
-(module
- ;; CHECK: (type $0 (func))
+ ;; CHECK: (func $br-with-value (type $2) (result i32)
+ ;; CHECK-NEXT: (block $l
+ ;; CHECK-NEXT: (block
+ ;; CHECK-NEXT: (br $l)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (block
+ ;; CHECK-NEXT: (br $l)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ (func $br-with-value (result i32)
+ (block $l (result i32)
+ (block
+ (br $l
+ (i32.const 1)
+ )
+ )
+ (block
+ (br $l
+ (i32.const 1)
+ )
+ )
+ (i32.const 1)
+ )
+ )
+
+ ;; CHECK: (func $br-and-fallthrough-with-value (type $2) (result i32)
+ ;; CHECK-NEXT: (block $l
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (block (result i32)
+ ;; CHECK-NEXT: (br $l)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (block (result i32)
+ ;; CHECK-NEXT: (br $l)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ (func $br-and-fallthrough-with-value (result i32)
+ (block $l (result i32)
+ (drop
+ (block (result i32)
+ (br $l
+ (i32.const 1)
+ )
+ )
+ )
+ (drop
+ (block (result i32)
+ (br $l
+ (i32.const 1)
+ )
+ )
+ )
+ (i32.const 1)
+ )
+ )
+
+ ;; CHECK: (func $br-with-value-and-more (type $2) (result i32)
+ ;; CHECK-NEXT: (block $l
+ ;; CHECK-NEXT: (block
+ ;; CHECK-NEXT: (br $l)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (block
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (br $l)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ (func $br-with-value-and-more (result i32)
+ (block $l (result i32)
+ (block
+ (nop)
+ (nop)
+ (br $l
+ (i32.const 1)
+ )
+ )
+ (block
+ (nop)
+ (nop)
+ (nop)
+ (br $l
+ (i32.const 1)
+ )
+ )
+ (nop)
+ (i32.const 1)
+ )
+ )
+
+ ;; CHECK: (func $br-and-fallthrough-with-value-and-more (type $2) (result i32)
+ ;; CHECK-NEXT: (block $l
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (block (result i32)
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (br $l)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (block (result i32)
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (br $l)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ (func $br-and-fallthrough-with-value-and-more (result i32)
+ (block $l (result i32)
+ (drop
+ (block (result i32)
+ (nop)
+ (nop)
+ (br $l
+ (i32.const 1)
+ )
+ )
+ )
+ (drop
+ (block (result i32)
+ (nop)
+ (nop)
+ (nop)
+ (br $l
+ (i32.const 1)
+ )
+ )
+ )
+ (nop)
+ (i32.const 1)
+ )
+ )
+
+ ;; CHECK: (func $unreachable-if (type $0)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (unreachable)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $unreachable-if
+ (if
+ (unreachable)
+ (then
+ (nop)
+ (drop
+ (i32.const 1)
+ )
+ )
+ (else
+ (nop)
+ (drop
+ (i32.const 1)
+ )
+ )
+ )
+ )
+
+ ;; CHECK: (func $unreachable-if-suffix (type $0)
+ ;; CHECK-NEXT: (if
+ ;; CHECK-NEXT: (unreachable)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $unreachable-if-suffix
+ (if
+ (unreachable)
+ (then
+ (drop
+ (i32.const 1)
+ )
+ )
+ (else
+ (nop)
+ (drop
+ (i32.const 1)
+ )
+ )
+ )
+ )
+
+ ;; 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: (i32.const 1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (unreachable)
+ ;; CHECK-NEXT: )
+ (func $unreachable-if-concrete-arms
+ (if (result i32)
+ (unreachable)
+ (then
+ (i32.const 1)
+ )
+ (else
+ (nop)
+ (i32.const 1)
+ )
+ )
+ (unreachable)
+ )
;; CHECK: (func $br-on-null (type $0)
;; CHECK-NEXT: (block $block
@@ -520,4 +863,69 @@
(call $br-on-null)
)
)
+
+ ;; CHECK: (func $refined-type (type $3) (result anyref)
+ ;; CHECK-NEXT: (select (result anyref)
+ ;; CHECK-NEXT: (if (result anyref)
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: (then
+ ;; CHECK-NEXT: (ref.null none)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (else
+ ;; CHECK-NEXT: (ref.null none)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (ref.null none)
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $refined-type (result anyref)
+ (select (result anyref)
+ ;; If we fold the identical arms, the select will have a stale type.
+ (if (result anyref)
+ (i32.const 0)
+ (then
+ (ref.null none)
+ )
+ (else
+ (ref.null none)
+ )
+ )
+ (ref.null none)
+ (i32.const 0)
+ )
+ )
+
+ ;; CHECK: (func $refined-type-blocks (type $3) (result anyref)
+ ;; CHECK-NEXT: (select (result anyref)
+ ;; CHECK-NEXT: (block (result anyref)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: (ref.null none)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (ref.null none)
+ ;; CHECK-NEXT: (i32.const 0)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $refined-type-blocks (result anyref)
+ (select (result anyref)
+ ;; Same, but now the arms are blocks, so they have the stale types (which is
+ ;; allowed) and the select is ok.
+ (if (result anyref)
+ (i32.const 0)
+ (then
+ (nop)
+ (ref.null none)
+ )
+ (else
+ (nop)
+ (ref.null none)
+ )
+ )
+ (ref.null none)
+ (i32.const 0)
+ )
+ )
)
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-04 16:29:55 +0000