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| author | Hal Finkel <hfinkel@anl.gov> | 2014-07-18 15:52:10 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2014-07-18 15:52:10 +0000 |
| commit | a2347baaec37ba81d64f9b455af3084cf183f127 (patch) | |
| tree | 38de0cdf097468df1afb29d2abb642bf7bdab1f1 /clang/test/CodeGenCXX/conditional-gnu-ext.cpp | |
| parent | b0407ba0716d940d035f5da73f6d3bfbaffecb44 (diff) | |
| download | bcm5719-llvm-a2347baaec37ba81d64f9b455af3084cf183f127.tar.gz bcm5719-llvm-a2347baaec37ba81d64f9b455af3084cf183f127.zip | |
Mark C++ reference parameters as dereferenceable
Because references must be initialized using some evaluated expression, they
must point to something, and a callee can assume the reference parameter is
dereferenceable. Taking advantage of a new attribute just added to LLVM, mark
them as such.
Because dereferenceability in addrspace(0) implies nonnull in the backend, we
don't need both attributes. However, we need to know the size of the object to
use the dereferenceable attribute, so for incomplete types we still emit only
nonnull.
llvm-svn: 213386
Diffstat (limited to 'clang/test/CodeGenCXX/conditional-gnu-ext.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/conditional-gnu-ext.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/clang/test/CodeGenCXX/conditional-gnu-ext.cpp b/clang/test/CodeGenCXX/conditional-gnu-ext.cpp index dd93467f21e..3a61a63cf44 100644 --- a/clang/test/CodeGenCXX/conditional-gnu-ext.cpp +++ b/clang/test/CodeGenCXX/conditional-gnu-ext.cpp @@ -83,7 +83,7 @@ namespace test3 { // CHECK-NEXT: [[T0:%.*]] = load [[B]]** [[X]] // CHECK-NEXT: [[BOOL:%.*]] = call zeroext i1 @_ZN5test31BcvbEv([[B]]* [[T0]]) // CHECK-NEXT: br i1 [[BOOL]] - // CHECK: call void @_ZN5test31BC1ERKS0_([[B]]* [[RESULT:%.*]], [[B]]* nonnull [[T0]]) + // CHECK: call void @_ZN5test31BC1ERKS0_([[B]]* [[RESULT:%.*]], [[B]]* dereferenceable({{[0-9]+}}) [[T0]]) // CHECK-NEXT: br label // CHECK: call void @_ZN5test31BC1Ev([[B]]* [[RESULT]]) // CHECK-NEXT: br label @@ -97,7 +97,7 @@ namespace test3 { // CHECK-NEXT: call void @_ZN5test312test1_helperEv([[B]]* sret [[TEMP]]) // CHECK-NEXT: [[BOOL:%.*]] = call zeroext i1 @_ZN5test31BcvbEv([[B]]* [[TEMP]]) // CHECK-NEXT: br i1 [[BOOL]] - // CHECK: call void @_ZN5test31BC1ERKS0_([[B]]* [[RESULT:%.*]], [[B]]* nonnull [[TEMP]]) + // CHECK: call void @_ZN5test31BC1ERKS0_([[B]]* [[RESULT:%.*]], [[B]]* dereferenceable({{[0-9]+}}) [[TEMP]]) // CHECK-NEXT: br label // CHECK: call void @_ZN5test31BC1Ev([[B]]* [[RESULT]]) // CHECK-NEXT: br label |
