c68df4110d
Rather than trying to pre-calculate the number of contexts required during scope analysis, instead just allocate context registers in the register allocator. This reduces frame size a bit due to reusing of registers when the context isn't pushed. BUG=v8:6322, chromium:716265 Change-Id: I145e38fcb3797a3b86c91e90ea9326a6e55b9b89 Reviewed-on: https://chromium-review.googlesource.com/514087 Reviewed-by: Marja Hölttä <marja@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#45522}
95 lines
2.3 KiB
Plaintext
95 lines
2.3 KiB
Plaintext
#
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# Autogenerated by generate-bytecode-expectations.
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#
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---
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wrap: yes
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---
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snippet: "
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try { return 1; } catch(e) { return 2; }
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"
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frame size: 2
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parameter count: 1
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bytecode array length: 30
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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B(Mov), R(context), R(0),
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/* 40 S> */ B(LdaSmi), I8(1),
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/* 75 S> */ B(Return),
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B(Jump), U8(21),
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B(Star), R(1),
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B(Ldar), R(closure),
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B(CreateCatchContext), R(1), U8(0), U8(1),
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B(Star), R(0),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Ldar), R(0),
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B(PushContext), R(1),
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/* 63 S> */ B(LdaSmi), I8(2),
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/* 75 S> */ B(Return),
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B(LdaUndefined),
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/* 75 S> */ B(Return),
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]
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constant pool: [
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["e"],
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FIXED_ARRAY_TYPE,
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]
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handlers: [
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[4, 7, 9],
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]
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---
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snippet: "
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var a;
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try { a = 1 } catch(e1) {};
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try { a = 2 } catch(e2) { a = 3 }
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"
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frame size: 3
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parameter count: 1
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bytecode array length: 61
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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B(Mov), R(context), R(1),
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/* 47 S> */ B(LdaSmi), I8(1),
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B(Star), R(0),
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B(Jump), U8(20),
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B(Star), R(2),
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B(Ldar), R(closure),
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/* 49 E> */ B(CreateCatchContext), R(2), U8(0), U8(1),
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B(Star), R(1),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Ldar), R(1),
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B(PushContext), R(2),
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B(PopContext), R(2),
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B(Mov), R(context), R(1),
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/* 75 S> */ B(LdaSmi), I8(2),
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B(Star), R(0),
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B(Jump), U8(24),
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B(Star), R(2),
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B(Ldar), R(closure),
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/* 77 E> */ B(CreateCatchContext), R(2), U8(2), U8(3),
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B(Star), R(1),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Ldar), R(1),
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B(PushContext), R(2),
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/* 95 S> */ B(LdaSmi), I8(3),
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B(Star), R(0),
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B(PopContext), R(2),
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B(LdaUndefined),
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/* 103 S> */ B(Return),
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]
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constant pool: [
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["e1"],
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FIXED_ARRAY_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["e2"],
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FIXED_ARRAY_TYPE,
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]
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handlers: [
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[4, 8, 10],
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[31, 35, 37],
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]
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