diff options
| author | Peter Collingbourne <peter@pcc.me.uk> | 2019-03-16 19:25:39 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2019-03-16 19:25:39 +0000 |
| commit | 68b4673feaaf4c16653847db3259d706229178f4 (patch) | |
| tree | a3bcea0e6dd0a5c5040e63f4f6c45fdf621c4c2d /clang/test/CodeGenCXX/auto-var-init.cpp | |
| parent | 3b0a6c69ee54fbe3a873adca35fa9b282121fb3d (diff) | |
| download | bcm5719-llvm-68b4673feaaf4c16653847db3259d706229178f4.tar.gz bcm5719-llvm-68b4673feaaf4c16653847db3259d706229178f4.zip | |
CodeGen: Preserve packed attribute in constStructWithPadding.
Otherwise the object may have an incorrect size due to tail padding.
Differential Revision: https://reviews.llvm.org/D59446
llvm-svn: 356328
Diffstat (limited to 'clang/test/CodeGenCXX/auto-var-init.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/auto-var-init.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/auto-var-init.cpp b/clang/test/CodeGenCXX/auto-var-init.cpp index 821387e34f8..3702183ecff 100644 --- a/clang/test/CodeGenCXX/auto-var-init.cpp +++ b/clang/test/CodeGenCXX/auto-var-init.cpp @@ -85,6 +85,8 @@ struct paddedpacked { char c; int i; } __attribute__((packed)); // PATTERN: @__const.test_paddedpackedarray_custom.custom = private unnamed_addr constant %struct.paddedpackedarray { [2 x %struct.paddedpacked] [%struct.paddedpacked <{ i8 42, i32 13371337 }>, %struct.paddedpacked <{ i8 43, i32 13371338 }>] }, align 1 // ZERO: @__const.test_paddedpackedarray_custom.custom = private unnamed_addr constant %struct.paddedpackedarray { [2 x %struct.paddedpacked] [%struct.paddedpacked <{ i8 42, i32 13371337 }>, %struct.paddedpacked <{ i8 43, i32 13371338 }>] }, align 1 struct paddedpackedarray { struct paddedpacked p[2]; }; +// PATTERN-O0: @__const.test_unpackedinpacked_uninit.uninit = private unnamed_addr constant <{ { i8, [3 x i8], i32 }, i8 }> <{ { i8, [3 x i8], i32 } { i8 -86, [3 x i8] c"\AA\AA\AA", i32 -1431655766 }, i8 -86 }>, align 1 +struct unpackedinpacked { padded a; char b; } __attribute__((packed)); // PATTERN-O0: @__const.test_paddednested_uninit.uninit = private unnamed_addr constant { { i8, [3 x i8], i32 }, { i8, [3 x i8], i32 } } { { i8, [3 x i8], i32 } { i8 -86, [3 x i8] c"\AA\AA\AA", i32 -1431655766 }, { i8, [3 x i8], i32 } { i8 -86, [3 x i8] c"\AA\AA\AA", i32 -1431655766 } }, align 4 // PATTERN: @__const.test_paddednested_custom.custom = private unnamed_addr constant { { i8, [3 x i8], i32 }, { i8, [3 x i8], i32 } } { { i8, [3 x i8], i32 } { i8 42, [3 x i8] c"\AA\AA\AA", i32 13371337 }, { i8, [3 x i8], i32 } { i8 43, [3 x i8] c"\AA\AA\AA", i32 13371338 } }, align 4 // ZERO: @__const.test_paddednested_custom.custom = private unnamed_addr constant { { i8, [3 x i8], i32 }, { i8, [3 x i8], i32 } } { { i8, [3 x i8], i32 } { i8 42, [3 x i8] zeroinitializer, i32 13371337 }, { i8, [3 x i8], i32 } { i8 43, [3 x i8] zeroinitializer, i32 13371338 } }, align 4 @@ -778,6 +780,10 @@ TEST_CUSTOM(paddedpackedarray, paddedpackedarray, { {{ 42, 13371337 }, { 43, 133 // CHECK-NEXT: call void @llvm.memcpy{{.*}}({{.*}}@__const.test_paddedpackedarray_custom.custom // CHECK-NEXT: call void @{{.*}}used{{.*}}%custom) +TEST_UNINIT(unpackedinpacked, unpackedinpacked); +// CHECK-LABEL: @test_unpackedinpacked_uninit() +// PATTERN-O0: call void @llvm.memcpy{{.*}}, i64 9, i1 false) + TEST_UNINIT(paddednested, paddednested); // CHECK-LABEL: @test_paddednested_uninit() // CHECK: %uninit = alloca %struct.paddednested, align |
