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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jit-test/tests/cacheir/shape-teleporting-1.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/jit-test/tests/cacheir/shape-teleporting-1.js | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/shape-teleporting-1.js b/js/src/jit-test/tests/cacheir/shape-teleporting-1.js new file mode 100644 index 0000000000..35deb8c34f --- /dev/null +++ b/js/src/jit-test/tests/cacheir/shape-teleporting-1.js @@ -0,0 +1,128 @@ +// Receiver shadows +(function() { + function check(p) { return p.x; } + + let a = { x: "a" }; + let b = { __proto__: a }; + let c = { __proto__: b }; + let d = { __proto__: c }; + + assertEq(check(d), "a"); + assertEq(check(d), "a"); + d.x = "d"; + assertEq(check(d), "d"); +})(); + +// Intermediate proto shadows +(function() { + function check(p) { return p.x; } + + let a = { x: "a" }; + let b = { __proto__: a }; + let c = { __proto__: b }; + let d = { __proto__: c }; + + assertEq(check(d), "a"); + assertEq(check(d), "a"); + c.x = "c"; + assertEq(check(d), "c"); +})(); + +// Receiver proto changes +(function() { + function check(p) { return p.x; } + + let a = { x: "a" }; + let b = { __proto__: a }; + let c = { __proto__: b }; + let d = { __proto__: c }; + + assertEq(check(d), "a"); + assertEq(check(d), "a"); + d.__proto__ = { x: "?" }; + assertEq(check(d), "?"); +})(); + +// Intermediate proto changes +(function() { + function check(p) { return p.x; } + + let a = { x: "a" }; + let b = { __proto__: a }; + let c = { __proto__: b }; + let d = { __proto__: c }; + + assertEq(check(d), "a"); + assertEq(check(d), "a"); + c.__proto__ = { x: "?" }; + assertEq(check(d), "?"); +})(); + +// Uncacheable holder proto +(function() { + function check(p) { return p.x; } + + function Base() { this.x = "a"; } + let a = new Base; + a.__proto__ = new Object; + let b = { __proto__: a }; + let c = { __proto__: b }; + let d = { __proto__: c }; + + assertEq(check(d), "a"); + assertEq(check(d), "a"); + b.__proto__ = { x: "?" }; + assertEq(check(d), "?"); +})(); + +// Uncacheable intermediate proto +(function() { + function check(p) { return p.x; } + + function Base() { this.x = "a"; } + function Node() { } + + let a = new Base; + let b = new Node; b.__proto__ = a; + let c = { __proto__: b }; + let d = { __proto__: c }; + + assertEq(check(d), "a"); + assertEq(check(d), "a"); + b.__proto__ = { x: "?" }; + assertEq(check(d), "?"); +})(); + +// Uncacheable receiver proto +(function() { + function check(p) { return p.x; } + + function Base() { this.x = "a"; } + function Node() { } + + let a = new Base; + let b = { __proto__: a }; + let c = { __proto__: b }; + let d = new Node; d.__proto__ = c; + + assertEq(check(d), "a"); + assertEq(check(d), "a"); + d.__proto__ = { x: "?" }; + assertEq(check(d), "?"); +})(); + +// Uncacheable receiver proto (only receiver / holder) +(function() { + function check(p) { return p.x; } + + function Base() { this.x = "a"; } + function Node() { } + + let a = new Base; + let b = new Node; b.__proto__ = a; + + assertEq(check(b), "a"); + assertEq(check(b), "a"); + b.__proto__ = { x: "?" }; + assertEq(check(b), "?"); +})(); |