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-rw-r--r--test/lit/passes/optimize-instructions-sign_ext.wast367
1 files changed, 367 insertions, 0 deletions
diff --git a/test/lit/passes/optimize-instructions-sign_ext.wast b/test/lit/passes/optimize-instructions-sign_ext.wast
new file mode 100644
index 000000000..19e6c45c8
--- /dev/null
+++ b/test/lit/passes/optimize-instructions-sign_ext.wast
@@ -0,0 +1,367 @@
+;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
+;; RUN: wasm-opt %s -all --optimize-instructions -S -o - | filecheck %s
+
+(module
+ ;; CHECK: (memory $0 16 17)
+ (memory $0 16 17)
+
+ ;; CHECK: (func $i32-direct (type $1) (param $x i32)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.extend8_s
+ ;; CHECK-NEXT: (local.get $x)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i32-direct (param $x i32)
+ ;; We do not need to sign-extend twice, and can emit just one extend8.
+ (drop
+ (i32.extend8_s
+ (i32.shr_s
+ (i32.shl
+ (local.get $x)
+ (i32.const 24)
+ )
+ (i32.const 24)
+ )
+ )
+ )
+ )
+
+ ;; CHECK: (func $i32-local (type $0)
+ ;; CHECK-NEXT: (local $temp i32)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i32.load8_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i32-local
+ ;; The local is sign-extended, so the i32.extend can be removed.
+ (local $temp i32)
+ (local.set $temp
+ (i32.load8_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i32.extend8_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i32-local-i16 (type $0)
+ ;; CHECK-NEXT: (local $temp i32)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i32.load16_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i32-local-i16
+ ;; As above with i16.
+ (local $temp i32)
+ (local.set $temp
+ (i32.load16_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i32.extend16_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i32-local-i16-mismatch-bad (type $0)
+ ;; CHECK-NEXT: (local $temp i32)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i32.load16_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i32.extend8_s
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i32-local-i16-mismatch-bad
+ ;; As above with in i8/i16 mismatch. We do not optimize.
+ (local $temp i32)
+ (local.set $temp
+ (i32.load16_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i32.extend8_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i32-local-i16-mismatch-good (type $0)
+ ;; CHECK-NEXT: (local $temp i32)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i32.load8_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i32-local-i16-mismatch-good
+ ;; As above with in i8/i16 mismatch, but in the direction we can handle.
+ (local $temp i32)
+ (local.set $temp
+ (i32.load8_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i32.extend16_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64 (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load8_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64
+ ;; As above, but with i64.
+ (local $temp i64)
+ (local.set $temp
+ (i64.load8_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend8_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64-i16 (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load16_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64-i16
+ (local $temp i64)
+ (local.set $temp
+ (i64.load16_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend16_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64-i32 (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load32_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64-i32
+ (local $temp i64)
+ (local.set $temp
+ (i64.load32_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend32_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64-mismatch-good (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load8_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64-mismatch-good
+ (local $temp i64)
+ (local.set $temp
+ (i64.load8_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend16_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64-mismatch-good2 (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load8_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64-mismatch-good2
+ (local $temp i64)
+ (local.set $temp
+ (i64.load8_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend32_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64-mismatch-good3 (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load16_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64-mismatch-good3
+ (local $temp i64)
+ (local.set $temp
+ (i64.load16_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend32_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64-mismatch-bad (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load16_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i64.extend8_s
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64-mismatch-bad
+ (local $temp i64)
+ (local.set $temp
+ (i64.load16_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend8_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64-mismatch-bad2 (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load32_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i64.extend8_s
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64-mismatch-bad2
+ (local $temp i64)
+ (local.set $temp
+ (i64.load32_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend8_s
+ (local.get $temp)
+ )
+ )
+ )
+
+ ;; CHECK: (func $i64-mismatch-bad3 (type $0)
+ ;; CHECK-NEXT: (local $temp i64)
+ ;; CHECK-NEXT: (local.set $temp
+ ;; CHECK-NEXT: (i64.load32_s
+ ;; CHECK-NEXT: (i32.const 22)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (i64.extend16_s
+ ;; CHECK-NEXT: (local.get $temp)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $i64-mismatch-bad3
+ (local $temp i64)
+ (local.set $temp
+ (i64.load32_s
+ (i32.const 22)
+ )
+ )
+ (drop
+ (i64.extend16_s
+ (local.get $temp)
+ )
+ )
+ )
+)
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-07 20:40:00 +0000