summaryrefslogtreecommitdiff
path: root/test/lit/passes/optimize-instructions-gc-tnh-nn.wast
diff options
context:
space:
mode:
Diffstat (limited to 'test/lit/passes/optimize-instructions-gc-tnh-nn.wast')
-rw-r--r--test/lit/passes/optimize-instructions-gc-tnh-nn.wast40
1 files changed, 40 insertions, 0 deletions
diff --git a/test/lit/passes/optimize-instructions-gc-tnh-nn.wast b/test/lit/passes/optimize-instructions-gc-tnh-nn.wast
new file mode 100644
index 000000000..e0a580ae1
--- /dev/null
+++ b/test/lit/passes/optimize-instructions-gc-tnh-nn.wast
@@ -0,0 +1,40 @@
+;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
+;; RUN: wasm-opt %s --optimize-instructions --traps-never-happen --enable-gc-nn-locals -all -S -o - \
+;; RUN: | filecheck %s
+
+(module
+ ;; CHECK: (func $set-of-as-non-null
+ ;; CHECK-NEXT: (local $x anyref)
+ ;; CHECK-NEXT: (local.set $x
+ ;; CHECK-NEXT: (ref.as_non_null
+ ;; CHECK-NEXT: (local.get $x)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (local.tee $x
+ ;; CHECK-NEXT: (ref.as_non_null
+ ;; CHECK-NEXT: (local.get $x)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $set-of-as-non-null
+ (local $x anyref)
+ ;; As we ignore such traps, we can in principle remove the ref.as here.
+ ;; However, as we allow non-nullable locals, we should not do that - if we
+ ;; did it it might prevent specializing the local type later.
+ (local.set $x
+ (ref.as_non_null
+ (local.get $x)
+ )
+ )
+ ;; The same for a tee.
+ (drop
+ (local.tee $x
+ (ref.as_non_null
+ (local.get $x)
+ )
+ )
+ )
+ )
+)