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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/mangle.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/mangle.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/mangle.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/clang/test/CodeGenCXX/mangle.cpp b/clang/test/CodeGenCXX/mangle.cpp index 66cc0262b01..9bdac7f1728 100644 --- a/clang/test/CodeGenCXX/mangle.cpp +++ b/clang/test/CodeGenCXX/mangle.cpp @@ -280,13 +280,13 @@ struct Ops { void *v; }; -// CHECK-LABEL: define nonnull %struct.Ops* @_ZN3OpsplERKS_ +// CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsplERKS_ Ops& Ops::operator+(const Ops&) { return *this; } -// CHECK-LABEL: define nonnull %struct.Ops* @_ZN3OpsmiERKS_ +// CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsmiERKS_ Ops& Ops::operator-(const Ops&) { return *this; } -// CHECK-LABEL: define nonnull %struct.Ops* @_ZN3OpsanERKS_ +// CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsanERKS_ Ops& Ops::operator&(const Ops&) { return *this; } -// CHECK-LABEL: define nonnull %struct.Ops* @_ZN3OpsmlERKS_ +// CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsmlERKS_ Ops& Ops::operator*(const Ops&) { return *this; } // PR5861 |
