Auto merge of #37429 - camlorn:univariant_layout_optimization, r=eddyb
struct field reordering and optimization This is work in progress. The goal is to divorce the order of fields in source code from the order of fields in the LLVM IR, then optimize structs (and tuples/enum variants)by always ordering fields from least to most aligned. It does not work yet. I intend to check compiler memory usage as a benchmark, and a crater run will probably be required. I don't know enough of the compiler to complete this work unaided. If you see places that still need updating, please mention them. The only one I know of currently is debuginfo, which I'm putting off intentionally until a bit later. r? @eddyb
This commit is contained in:
bors
commit
8327b5afaf
28 changed files with 538 additions and 232 deletions
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@ -18,11 +18,11 @@
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// gdb-command:run
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// gdb-command:print *the_a_ref
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// gdbg-check:$1 = {{RUST$ENUM$DISR = TheA, x = 0, y = 8970181431921507452}, {RUST$ENUM$DISR = TheA, __0 = 0, __1 = 2088533116, __2 = 2088533116}}
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// gdbg-check:$1 = {{RUST$ENUM$DISR = TheA, x = 0, y = 8970181431921507452}, {RUST$ENUM$DISR = TheA, [...]}}
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// gdbr-check:$1 = borrowed_enum::ABC::TheA{x: 0, y: 8970181431921507452}
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// gdb-command:print *the_b_ref
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// gdbg-check:$2 = {{RUST$ENUM$DISR = TheB, x = 0, y = 1229782938247303441}, {RUST$ENUM$DISR = TheB, __0 = 0, __1 = 286331153, __2 = 286331153}}
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// gdbg-check:$2 = {{RUST$ENUM$DISR = TheB, [...]}, {RUST$ENUM$DISR = TheB, __0 = 0, __1 = 286331153, __2 = 286331153}}
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// gdbr-check:$2 = borrowed_enum::ABC::TheB(0, 286331153, 286331153)
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// gdb-command:print *univariant_ref
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@ -42,7 +42,7 @@
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// gdb-command:continue
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// gdb-command:print x
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// gdbg-check:$7 = {{RUST$ENUM$DISR = Case1, x = 0, y = 8970181431921507452}, {RUST$ENUM$DISR = Case1, __0 = 0, __1 = 2088533116, __2 = 2088533116}}
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// gdbg-check:$7 = {{RUST$ENUM$DISR = Case1, x = 0, y = 8970181431921507452}, {RUST$ENUM$DISR = Case1, [...]}}
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// gdbr-check:$7 = by_value_non_immediate_argument::Enum::Case1{x: 0, y: 8970181431921507452}
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// gdb-command:continue
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@ -17,15 +17,15 @@
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// gdb-command:run
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// gdb-command:print case1
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, a = 0, b = 31868, c = 31868, d = 31868, e = 31868}, {RUST$ENUM$DISR = Case1, a = 0, b = 2088533116, c = 2088533116}, {RUST$ENUM$DISR = Case1, a = 0, b = 8970181431921507452}}
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, a = 0, b = 31868, c = 31868, d = 31868, e = 31868}, {RUST$ENUM$DISR = Case1, [...]}, {RUST$ENUM$DISR = Case1, [...]}}
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// gdbr-check:$1 = generic_struct_style_enum::Regular::Case1{a: 0, b: 31868, c: 31868, d: 31868, e: 31868}
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// gdb-command:print case2
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, a = 0, b = 4369, c = 4369, d = 4369, e = 4369}, {RUST$ENUM$DISR = Case2, a = 0, b = 286331153, c = 286331153}, {RUST$ENUM$DISR = Case2, a = 0, b = 1229782938247303441}}
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, [...]}, {RUST$ENUM$DISR = Case2, a = 0, b = 286331153, c = 286331153}, {RUST$ENUM$DISR = Case2, [...]}}
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// gdbr-check:$2 = generic_struct_style_enum::Regular::Case2{a: 0, b: 286331153, c: 286331153}
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// gdb-command:print case3
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// gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, a = 0, b = 22873, c = 22873, d = 22873, e = 22873}, {RUST$ENUM$DISR = Case3, a = 0, b = 1499027801, c = 1499027801}, {RUST$ENUM$DISR = Case3, a = 0, b = 6438275382588823897}}
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// gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, a = 0, b = 6438275382588823897}}
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// gdbr-check:$3 = generic_struct_style_enum::Regular::Case3{a: 0, b: 6438275382588823897}
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// gdb-command:print univariant
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@ -19,15 +19,15 @@
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// gdb-command:run
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// gdb-command:print case1
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, __0 = 0, __1 = 31868, __2 = 31868, __3 = 31868, __4 = 31868}, {RUST$ENUM$DISR = Case1, __0 = 0, __1 = 2088533116, __2 = 2088533116}, {RUST$ENUM$DISR = Case1, __0 = 0, __1 = 8970181431921507452}}
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, __0 = 0, __1 = 31868, __2 = 31868, __3 = 31868, __4 = 31868}, {RUST$ENUM$DISR = Case1, [...]}, {RUST$ENUM$DISR = Case1, [...]}}
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// gdbr-check:$1 = generic_tuple_style_enum::Regular::Case1(0, 31868, 31868, 31868, 31868)
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// gdb-command:print case2
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, __0 = 0, __1 = 4369, __2 = 4369, __3 = 4369, __4 = 4369}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 286331153, __2 = 286331153}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 1229782938247303441}}
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, [...]}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 286331153, __2 = 286331153}, {RUST$ENUM$DISR = Case2, [...]}}
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// gdbr-check:$2 = generic_tuple_style_enum::Regular::Case2(0, 286331153, 286331153)
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// gdb-command:print case3
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// gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, __0 = 0, __1 = 22873, __2 = 22873, __3 = 22873, __4 = 22873}, {RUST$ENUM$DISR = Case3, __0 = 0, __1 = 1499027801, __2 = 1499027801}, {RUST$ENUM$DISR = Case3, __0 = 0, __1 = 6438275382588823897}}
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// gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, __0 = 0, __1 = 6438275382588823897}}
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// gdbr-check:$3 = generic_tuple_style_enum::Regular::Case3(0, 6438275382588823897)
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// gdb-command:print univariant
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@ -19,11 +19,11 @@
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// gdb-command:run
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// gdb-command:print case1
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, __0 = 0, __1 = {x = 2088533116, y = 2088533116, z = 31868}}, {RUST$ENUM$DISR = Case1, __0 = 0, __1 = 8970181431921507452, __2 = 31868}}
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, __0 = 0, __1 = {x = 2088533116, y = 2088533116, z = 31868}}, {RUST$ENUM$DISR = Case1, [...]}}
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// gdbr-check:$1 = struct_in_enum::Regular::Case1(0, struct_in_enum::Struct {x: 2088533116, y: 2088533116, z: 31868})
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// gdb-command:print case2
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, __0 = 0, __1 = {x = 286331153, y = 286331153, z = 4369}}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 1229782938247303441, __2 = 4369}}
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, [...]}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 1229782938247303441, __2 = 4369}}
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// gdbr-check:$2 = struct_in_enum::Regular::Case2(0, 1229782938247303441, 4369)
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// gdb-command:print univariant
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@ -19,15 +19,15 @@
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// gdb-command:run
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// gdb-command:print case1
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, a = 0, b = 31868, c = 31868, d = 31868, e = 31868}, {RUST$ENUM$DISR = Case1, a = 0, b = 2088533116, c = 2088533116}, {RUST$ENUM$DISR = Case1, a = 0, b = 8970181431921507452}}
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, a = 0, b = 31868, c = 31868, d = 31868, e = 31868}, {RUST$ENUM$DISR = Case1, [...]}, {RUST$ENUM$DISR = Case1, [...]}}
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// gdbr-check:$1 = struct_style_enum::Regular::Case1{a: 0, b: 31868, c: 31868, d: 31868, e: 31868}
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// gdb-command:print case2
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, a = 0, b = 4369, c = 4369, d = 4369, e = 4369}, {RUST$ENUM$DISR = Case2, a = 0, b = 286331153, c = 286331153}, {RUST$ENUM$DISR = Case2, a = 0, b = 1229782938247303441}}
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||||
// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, [...]}, {RUST$ENUM$DISR = Case2, a = 0, b = 286331153, c = 286331153}, {RUST$ENUM$DISR = Case2, [...]}}
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// gdbr-check:$2 = struct_style_enum::Regular::Case2{a: 0, b: 286331153, c: 286331153}
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// gdb-command:print case3
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// gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, a = 0, b = 22873, c = 22873, d = 22873, e = 22873}, {RUST$ENUM$DISR = Case3, a = 0, b = 1499027801, c = 1499027801}, {RUST$ENUM$DISR = Case3, a = 0, b = 6438275382588823897}}
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// gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, a = 0, b = 6438275382588823897}}
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// gdbr-check:$3 = struct_style_enum::Regular::Case3{a: 0, b: 6438275382588823897}
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// gdb-command:print univariant
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@ -19,15 +19,15 @@
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// gdb-command:run
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// gdb-command:print case1
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, __0 = 0, __1 = 31868, __2 = 31868, __3 = 31868, __4 = 31868}, {RUST$ENUM$DISR = Case1, __0 = 0, __1 = 2088533116, __2 = 2088533116}, {RUST$ENUM$DISR = Case1, __0 = 0, __1 = 8970181431921507452}}
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// gdbg-check:$1 = {{RUST$ENUM$DISR = Case1, __0 = 0, __1 = 31868, __2 = 31868, __3 = 31868, __4 = 31868}, {RUST$ENUM$DISR = Case1, [...]}, {RUST$ENUM$DISR = Case1, [...]}}
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// gdbr-check:$1 = tuple_style_enum::Regular::Case1(0, 31868, 31868, 31868, 31868)
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// gdb-command:print case2
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, __0 = 0, __1 = 4369, __2 = 4369, __3 = 4369, __4 = 4369}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 286331153, __2 = 286331153}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 1229782938247303441}}
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// gdbg-check:$2 = {{RUST$ENUM$DISR = Case2, [...]}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 286331153, __2 = 286331153}, {RUST$ENUM$DISR = Case2, [...]}}
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// gdbr-check:$2 = tuple_style_enum::Regular::Case2(0, 286331153, 286331153)
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// gdb-command:print case3
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// gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, __0 = 0, __1 = 22873, __2 = 22873, __3 = 22873, __4 = 22873}, {RUST$ENUM$DISR = Case3, __0 = 0, __1 = 1499027801, __2 = 1499027801}, {RUST$ENUM$DISR = Case3, __0 = 0, __1 = 6438275382588823897}}
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// gdbg-check:$3 = {{RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, [...]}, {RUST$ENUM$DISR = Case3, __0 = 0, __1 = 6438275382588823897}}
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// gdbr-check:$3 = tuple_style_enum::Regular::Case3(0, 6438275382588823897)
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// gdb-command:print univariant
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@ -18,11 +18,11 @@
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// gdb-command:run
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// gdb-command:print *the_a
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// gdbg-check:$1 = {{RUST$ENUM$DISR = TheA, x = 0, y = 8970181431921507452}, {RUST$ENUM$DISR = TheA, __0 = 0, __1 = 2088533116, __2 = 2088533116}}
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// gdbg-check:$1 = {{RUST$ENUM$DISR = TheA, x = 0, y = 8970181431921507452}, {RUST$ENUM$DISR = TheA, [...]}}
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// gdbr-check:$1 = unique_enum::ABC::TheA{x: 0, y: 8970181431921507452}
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// gdb-command:print *the_b
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// gdbg-check:$2 = {{RUST$ENUM$DISR = TheB, x = 0, y = 1229782938247303441}, {RUST$ENUM$DISR = TheB, __0 = 0, __1 = 286331153, __2 = 286331153}}
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// gdbg-check:$2 = {{RUST$ENUM$DISR = TheB, [...]}, {RUST$ENUM$DISR = TheB, __0 = 0, __1 = 286331153, __2 = 286331153}}
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// gdbr-check:$2 = unique_enum::ABC::TheB(0, 286331153, 286331153)
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// gdb-command:print *univariant
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22
src/test/run-pass/closure-immediate.rs
Normal file
22
src/test/run-pass/closure-immediate.rs
Normal file
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@ -0,0 +1,22 @@
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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// After the work to reoptimize structs, it became possible for immediate logic to fail.
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// This test verifies that it actually works.
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fn main() {
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let c = |a: u8, b: u16, c: u8| {
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assert_eq!(a, 1);
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assert_eq!(b, 2);
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assert_eq!(c, 3);
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};
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c(1, 2, 3);
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}
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@ -11,6 +11,9 @@
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#![warn(variant_size_differences)]
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#![allow(dead_code)]
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// Note that the following test works because all fields of the enum variants are of the same size.
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// If this test is modified and the reordering logic in librustc/ty/layout.rs kicks in, it fails.
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enum Enum1 { }
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enum Enum2 { A, B, C }
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@ -14,11 +14,13 @@
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// ignore-msvc
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// ignore-emscripten
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#[repr(C)]
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struct TwoU8s {
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one: u8,
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two: u8,
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}
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#[repr(C)]
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struct ManyInts {
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arg1: i8,
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arg2: i16,
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@ -28,6 +30,7 @@ struct ManyInts {
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arg6: TwoU8s,
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}
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#[repr(C)]
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struct Empty;
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#[link(name = "rust_test_helpers", kind = "static")]
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|
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43
src/test/run-pass/multiple-reprs.rs
Normal file
43
src/test/run-pass/multiple-reprs.rs
Normal file
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@ -0,0 +1,43 @@
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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
|
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// file at the top-level directory of this distribution and at
|
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// http://rust-lang.org/COPYRIGHT.
|
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//
|
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
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|
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use std::mem::size_of;
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// The two enums that follow are designed so that bugs trigger layout optimization.
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// Specifically, if either of the following reprs used here is not detected by the compiler,
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// then the sizes will be wrong.
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#[repr(C, u8)]
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enum E1 {
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A(u8, u16, u8),
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B(u8, u16, u8)
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}
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#[repr(u8, C)]
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enum E2 {
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A(u8, u16, u8),
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B(u8, u16, u8)
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}
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// From pr 37429
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#[repr(C,packed)]
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pub struct p0f_api_query {
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pub magic: u32,
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pub addr_type: u8,
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pub addr: [u8; 16],
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}
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pub fn main() {
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assert_eq!(size_of::<E1>(), 6);
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assert_eq!(size_of::<E2>(), 6);
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assert_eq!(size_of::<p0f_api_query>(), 21);
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}
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|
@ -26,8 +26,7 @@ fn main() {
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assert_eq!(size_of::<E>(), 1);
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assert_eq!(size_of::<Option<E>>(), 1);
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assert_eq!(size_of::<Result<E, ()>>(), 1);
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||||
assert_eq!(size_of::<S>(), 4);
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assert_eq!(size_of::<Option<S>>(), 4);
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assert_eq!(size_of::<Option<S>>(), size_of::<S>());
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let enone = None::<E>;
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let esome = Some(E::A);
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if let Some(..) = enone {
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|
|
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|||
|
|
@ -9,9 +9,11 @@
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// except according to those terms.
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//
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||||
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#[repr(C)]
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||||
#[derive(Copy, Clone)]
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||||
pub struct Quad { a: u64, b: u64, c: u64, d: u64 }
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#[repr(C)]
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#[derive(Copy, Clone)]
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pub struct Floats { a: f64, b: u8, c: f64 }
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|
|
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|
|
@ -26,10 +26,15 @@ enum e2 {
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a(u32), b
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}
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#[repr(C, u8)]
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enum e3 {
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a([u16; 0], u8), b
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}
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||||
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||||
// Test struct field reordering to make sure it actually reorders.
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struct WillOptimize1(u8, u16, u8);
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struct WillOptimize2 { a: u8, b: u16, c: u8}
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||||
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||||
pub fn main() {
|
||||
assert_eq!(size_of::<u8>(), 1 as usize);
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||||
assert_eq!(size_of::<u32>(), 4 as usize);
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||||
|
|
@ -53,4 +58,7 @@ pub fn main() {
|
|||
assert_eq!(size_of::<e1>(), 8 as usize);
|
||||
assert_eq!(size_of::<e2>(), 8 as usize);
|
||||
assert_eq!(size_of::<e3>(), 4 as usize);
|
||||
|
||||
assert_eq!(size_of::<WillOptimize1>(), 4);
|
||||
assert_eq!(size_of::<WillOptimize2>(), 4);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,25 +1,22 @@
|
|||
print-type-size type: `IndirectNonZero<u32>`: 20 bytes, alignment: 4 bytes
|
||||
print-type-size field `.pre`: 1 bytes
|
||||
print-type-size padding: 3 bytes
|
||||
print-type-size field `.nested`: 12 bytes, alignment: 4 bytes
|
||||
print-type-size type: `IndirectNonZero<u32>`: 12 bytes, alignment: 4 bytes
|
||||
print-type-size field `.nested`: 8 bytes
|
||||
print-type-size field `.post`: 2 bytes
|
||||
print-type-size end padding: 2 bytes
|
||||
print-type-size type: `MyOption<IndirectNonZero<u32>>`: 20 bytes, alignment: 4 bytes
|
||||
print-type-size variant `Some`: 20 bytes
|
||||
print-type-size field `.0`: 20 bytes
|
||||
print-type-size type: `EmbeddedDiscr`: 12 bytes, alignment: 4 bytes
|
||||
print-type-size variant `Record`: 10 bytes
|
||||
print-type-size field `.pre`: 1 bytes
|
||||
print-type-size padding: 3 bytes
|
||||
print-type-size field `.val`: 4 bytes, alignment: 4 bytes
|
||||
print-type-size field `.pre`: 1 bytes
|
||||
print-type-size end padding: 1 bytes
|
||||
print-type-size type: `MyOption<IndirectNonZero<u32>>`: 12 bytes, alignment: 4 bytes
|
||||
print-type-size variant `Some`: 12 bytes
|
||||
print-type-size field `.0`: 12 bytes
|
||||
print-type-size type: `EmbeddedDiscr`: 8 bytes, alignment: 4 bytes
|
||||
print-type-size variant `Record`: 7 bytes
|
||||
print-type-size field `.val`: 4 bytes
|
||||
print-type-size field `.post`: 2 bytes
|
||||
print-type-size end padding: 2 bytes
|
||||
print-type-size type: `NestedNonZero<u32>`: 12 bytes, alignment: 4 bytes
|
||||
print-type-size field `.pre`: 1 bytes
|
||||
print-type-size padding: 3 bytes
|
||||
print-type-size field `.val`: 4 bytes, alignment: 4 bytes
|
||||
print-type-size field `.pre`: 1 bytes
|
||||
print-type-size end padding: 1 bytes
|
||||
print-type-size type: `NestedNonZero<u32>`: 8 bytes, alignment: 4 bytes
|
||||
print-type-size field `.val`: 4 bytes
|
||||
print-type-size field `.post`: 2 bytes
|
||||
print-type-size end padding: 2 bytes
|
||||
print-type-size field `.pre`: 1 bytes
|
||||
print-type-size end padding: 1 bytes
|
||||
print-type-size type: `MyOption<core::nonzero::NonZero<u32>>`: 4 bytes, alignment: 4 bytes
|
||||
print-type-size variant `Some`: 4 bytes
|
||||
print-type-size field `.0`: 4 bytes
|
||||
|
|
|
|||
|
|
@ -1,13 +1,11 @@
|
|||
print-type-size type: `Padded`: 16 bytes, alignment: 4 bytes
|
||||
print-type-size type: `Padded`: 12 bytes, alignment: 4 bytes
|
||||
print-type-size field `.g`: 4 bytes
|
||||
print-type-size field `.h`: 2 bytes
|
||||
print-type-size field `.a`: 1 bytes
|
||||
print-type-size field `.b`: 1 bytes
|
||||
print-type-size padding: 2 bytes
|
||||
print-type-size field `.g`: 4 bytes, alignment: 4 bytes
|
||||
print-type-size field `.c`: 1 bytes
|
||||
print-type-size padding: 1 bytes
|
||||
print-type-size field `.h`: 2 bytes, alignment: 2 bytes
|
||||
print-type-size field `.d`: 1 bytes
|
||||
print-type-size end padding: 3 bytes
|
||||
print-type-size end padding: 2 bytes
|
||||
print-type-size type: `Packed`: 10 bytes, alignment: 1 bytes
|
||||
print-type-size field `.a`: 1 bytes
|
||||
print-type-size field `.b`: 1 bytes
|
||||
|
|
|
|||
|
|
@ -1,10 +1,12 @@
|
|||
print-type-size type: `E1`: 12 bytes, alignment: 4 bytes
|
||||
print-type-size discriminant: 4 bytes
|
||||
print-type-size variant `A`: 5 bytes
|
||||
print-type-size field `.0`: 4 bytes
|
||||
print-type-size discriminant: 1 bytes
|
||||
print-type-size variant `A`: 7 bytes
|
||||
print-type-size field `.1`: 1 bytes
|
||||
print-type-size variant `B`: 8 bytes
|
||||
print-type-size field `.0`: 8 bytes
|
||||
print-type-size padding: 2 bytes
|
||||
print-type-size field `.0`: 4 bytes, alignment: 4 bytes
|
||||
print-type-size variant `B`: 11 bytes
|
||||
print-type-size padding: 3 bytes
|
||||
print-type-size field `.0`: 8 bytes, alignment: 4 bytes
|
||||
print-type-size type: `E2`: 12 bytes, alignment: 4 bytes
|
||||
print-type-size discriminant: 1 bytes
|
||||
print-type-size variant `A`: 7 bytes
|
||||
|
|
@ -15,7 +17,7 @@ print-type-size variant `B`: 11 bytes
|
|||
print-type-size padding: 3 bytes
|
||||
print-type-size field `.0`: 8 bytes, alignment: 4 bytes
|
||||
print-type-size type: `S`: 8 bytes, alignment: 4 bytes
|
||||
print-type-size field `.g`: 4 bytes
|
||||
print-type-size field `.a`: 1 bytes
|
||||
print-type-size field `.b`: 1 bytes
|
||||
print-type-size padding: 2 bytes
|
||||
print-type-size field `.g`: 4 bytes, alignment: 4 bytes
|
||||
print-type-size end padding: 2 bytes
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue