diff options
| author | Chad Rosier <mcrosier@apple.com> | 2011-11-15 23:34:05 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@apple.com> | 2011-11-15 23:34:05 +0000 |
| commit | 291ce47db730d2896da17232ece46371de4b9317 (patch) | |
| tree | 88f3e5300e0453c5fa8aa77e0ef33de72344289c /clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp | |
| parent | 78286b24fd85e30b519f3c333cdad0872aaa1f9c (diff) | |
| download | bcm5719-llvm-291ce47db730d2896da17232ece46371de4b9317.tar.gz bcm5719-llvm-291ce47db730d2896da17232ece46371de4b9317.zip | |
GEPs with all zero indices are trivially coalesced by fast-isel. For example,
%arrayidx135 = getelementptr inbounds [4 x [4 x [4 x [4 x i32]]]]* %M0, i32 0, i64 0
%arrayidx136 = getelementptr inbounds [4 x [4 x [4 x i32]]]* %arrayidx135, i32 0, i64 %idxprom134
Prior to this commit, the GEP instruction that defines %arrayidx136 thought that
%arrayidx135 was a trivial kill. The GEP that defines %arrayidx135 doesn't
generate any code and thus %M0 gets folded into the second GEP. Thus, we need
to look through GEPs with all zero indices.
rdar://10443319
llvm-svn: 144730
Diffstat (limited to 'clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions
