[PATCH] abg-ir.cc: Add types_have_similar_structure tests.
Matthias Maennich
maennich@google.com
Sun Mar 29 15:13:55 GMT 2020
On Thu, Mar 26, 2020 at 05:53:50PM +0000, Giuliano Procida wrote:
>This is a follow-up to a recent commit. This patch adds more tests, as
>suggested by a reviewer.
>
> * src/abg-ir.cc (types_have_similar_structure): Update TODO
> regarding structure of arrays - multidimensional arrays are
> the issue.
> * tests/data/test-abidiff-exit/test-leaf-peeling-report.txt:
> Updated following changes.
> * tests/data/test-abidiff-exit/test-leaf-peeling-v0.cc: Add
> more cases (see below).
> * tests/data/test-abidiff-exit/test-leaf-peeling-v0.o:
> Updated.
> * tests/data/test-abidiff-exit/test-leaf-peeling-v1.cc: Add
> comment about a potential change to local-change semantics;
> add test cases to demonstrate that * and & and * and *** are
> structurally different; add a TODO regarding multidimensional
> arrays where changes are sometimes missed in leaf mode.
> * tests/data/test-abidiff-exit/test-leaf-peeling-v1.o
>
>Signed-off-by: Giuliano Procida <gprocida@google.com>
Thanks for adding those additional test cases!
Reviewed-by: Matthias Maennich <maennich@google.com>
Cheers,
Matthias
>---
> src/abg-ir.cc | 2 +-
> .../test-leaf-peeling-report.txt | 29 ++++++++++++++----
> .../test-abidiff-exit/test-leaf-peeling-v0.cc | 19 ++++++++----
> .../test-abidiff-exit/test-leaf-peeling-v0.o | Bin 3704 -> 4528 bytes
> .../test-abidiff-exit/test-leaf-peeling-v1.cc | 24 +++++++++++----
> .../test-abidiff-exit/test-leaf-peeling-v1.o | Bin 3752 -> 4600 bytes
> 6 files changed, 55 insertions(+), 19 deletions(-)
>
>diff --git a/src/abg-ir.cc b/src/abg-ir.cc
>index 5576c137..e1e757e9 100644
>--- a/src/abg-ir.cc
>+++ b/src/abg-ir.cc
>@@ -22725,7 +22725,7 @@ types_have_similar_structure(const type_base* first,
> if (const array_type_def* ty1 = is_array_type(first))
> {
> const array_type_def* ty2 = is_array_type(second);
>- // TODO: Handle uint32_t[10] vs uint64_t[5] better.
>+ // TODO: Handle int[5][2] vs int[2][5] better.
> if (ty1->get_size_in_bits() != ty2->get_size_in_bits()
> || ty1->get_dimension_count() != ty2->get_dimension_count()
> || !types_have_similar_structure(ty1->get_element_type(),
>diff --git a/tests/data/test-abidiff-exit/test-leaf-peeling-report.txt b/tests/data/test-abidiff-exit/test-leaf-peeling-report.txt
>index eeffc7b5..119d01b4 100644
>--- a/tests/data/test-abidiff-exit/test-leaf-peeling-report.txt
>+++ b/tests/data/test-abidiff-exit/test-leaf-peeling-report.txt
>@@ -1,9 +1,9 @@
>-Leaf changes summary: 4 artifacts changed
>-Changed leaf types summary: 4 leaf types changed
>+Leaf changes summary: 6 artifacts changed
>+Changed leaf types summary: 6 leaf types changed
> Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 0 Added function
> Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable
>
>-'struct foo at test-leaf-peeling.0.cc:1:1' changed:
>+'struct foo at test-leaf-peeling-v0.cc:1:1' changed:
> type size changed from 32 to 64 (in bits)
> there are data member changes:
> type 'int' of 'foo::z' changed:
>@@ -12,7 +12,7 @@ Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable
> and size changed from 32 to 64 (in bits) (by +32 bits)
>
>
>-'struct ops1 at test-leaf-peeling.0.cc:5:1' changed:
>+'struct ops1 at test-leaf-peeling-v0.cc:5:1' changed:
> type size hasn't changed
> there are data member changes:
> type 'int*' of 'ops1::x' changed:
>@@ -20,15 +20,32 @@ Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable
>
>
>
>-'struct ops2 at test-leaf-peeling.0.cc:9:1' changed:
>+'struct ops2 at test-leaf-peeling-v0.cc:9:1' changed:
> type size changed from 320 to 640 (in bits)
> there are data member changes:
> 'foo ops2::y[10]' size changed from 320 to 640 (in bits) (by +320 bits)
>
>
>-'struct ops3 at test-leaf-peeling.0.cc:13:1' changed:
>+'struct ops3 at test-leaf-peeling-v0.cc:13:1' changed:
> type size hasn't changed
> there are data member changes:
> type 'void (int&)*' of 'ops3::spong' changed:
> pointer type changed from: 'void (int&)*' to: 'void (int&&)*'
>
>+
>+
>+'struct ops4 at test-leaf-peeling-v0.cc:17:1' changed:
>+ type size hasn't changed
>+ there are data member changes:
>+ type 'int*' of 'ops4::x' changed:
>+ entity changed from 'int*' to 'int&'
>+ type size hasn't changed
>+
>+
>+
>+'struct ops5 at test-leaf-peeling-v0.cc:21:1' changed:
>+ type size hasn't changed
>+ there are data member changes:
>+ type 'int*' of 'ops5::x' changed:
>+ pointer type changed from: 'int*' to: 'int***'
>+
>diff --git a/tests/data/test-abidiff-exit/test-leaf-peeling-v0.cc b/tests/data/test-abidiff-exit/test-leaf-peeling-v0.cc
>index b927d15e..745d44f5 100644
>--- a/tests/data/test-abidiff-exit/test-leaf-peeling-v0.cc
>+++ b/tests/data/test-abidiff-exit/test-leaf-peeling-v0.cc
>@@ -14,11 +14,18 @@ struct ops3 {
> void (*spong)(int & wibble);
> };
>
>-void register_ops1(ops1*) {
>-}
>+struct ops4 {
>+ int * x;
>+};
>+
>+struct ops5 {
>+ int * x;
>+};
>
>-void register_ops2(ops2*) {
>-}
>+int var6[2][5];
>
>-void register_ops3(ops3*) {
>-}
>+void register_ops1(ops1*) { }
>+void register_ops2(ops2*) { }
>+void register_ops3(ops3*) { }
>+void register_ops4(ops4*) { }
>+void register_ops5(ops5*) { }
>diff --git a/tests/data/test-abidiff-exit/test-leaf-peeling-v0.o b/tests/data/test-abidiff-exit/test-leaf-peeling-v0.o
>index a556a63560122a5e926ab708bb13f0fd40714638..e6ed6218704e957cbac929f82d0a571fd181103f 100644
>GIT binary patch
>literal 4528
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>
>delta 986
>zcmZ`&&ubGw6rS15HZ$2~lTB<kORH@VH3Sk;1-ELO7C{<C3h`1gU=!Ol24b2t5$weT
>zyoe{mL%c+65f2`ON-sGoB8V65#e*mP2So9r;K7;fY!8bL?ECS(`QE<w_U+E$UlR|K
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>diff --git a/tests/data/test-abidiff-exit/test-leaf-peeling-v1.cc b/tests/data/test-abidiff-exit/test-leaf-peeling-v1.cc
>index 7c88df9f..439f7c0b 100644
>--- a/tests/data/test-abidiff-exit/test-leaf-peeling-v1.cc
>+++ b/tests/data/test-abidiff-exit/test-leaf-peeling-v1.cc
>@@ -7,6 +7,10 @@ struct ops1 {
> };
>
> struct ops2 {
>+ // A change to foo's size is currently considered local here. Arguably this
>+ // should be considered non-local as the change to foo is being reported
>+ // independently. If this happens, the test case will need to be updated (to
>+ // remove the reporting of an ops5 diff).
> foo y[10];
> };
>
>@@ -14,11 +18,19 @@ struct ops3 {
> void (*spong)(int && wibble);
> };
>
>-void register_ops1(ops1*) {
>-}
>+struct ops4 {
>+ int & x;
>+};
>+
>+struct ops5 {
>+ int *** x;
>+};
>
>-void register_ops2(ops2*) {
>-}
>+// TODO: This *should* be considered a local change, but currently is not.
>+int var6[5][2];
>
>-void register_ops3(ops3*) {
>-}
>+void register_ops1(ops1*) { }
>+void register_ops2(ops2*) { }
>+void register_ops3(ops3*) { }
>+void register_ops4(ops4*) { }
>+void register_ops5(ops5*) { }
>diff --git a/tests/data/test-abidiff-exit/test-leaf-peeling-v1.o b/tests/data/test-abidiff-exit/test-leaf-peeling-v1.o
>index e71ade4431f80a78ee73292d60808a2ee5404640..81fcfe0a5a5abecf2d104e71859a04ab529d0b04 100644
>GIT binary patch
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>
>delta 989
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>
>--
>2.25.1.696.g5e7596f4ac-goog
>
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