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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2012-03-28 14:50:09 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2012-03-28 14:50:09 +0000 |
| commit | aa9e4a5e590985f9e58a1efb83cb5cb10964fbbf (patch) | |
| tree | 6896b7b433b8e6c2da260bd026d8201306510ad8 /llvm/test/Transforms/GlobalOpt/zeroinitializer-gep-load.ll | |
| parent | ce9978ff1f751b30f52d309756015489146b48bc (diff) | |
| download | bcm5719-llvm-aa9e4a5e590985f9e58a1efb83cb5cb10964fbbf.tar.gz bcm5719-llvm-aa9e4a5e590985f9e58a1efb83cb5cb10964fbbf.zip | |
GlobalOpt: If we have an inbounds GEP from a ConstantAggregateZero global that we just determined to be constant, replace all loads from it with a zero value.
llvm-svn: 153576
Diffstat (limited to 'llvm/test/Transforms/GlobalOpt/zeroinitializer-gep-load.ll')
| -rw-r--r-- | llvm/test/Transforms/GlobalOpt/zeroinitializer-gep-load.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/test/Transforms/GlobalOpt/zeroinitializer-gep-load.ll b/llvm/test/Transforms/GlobalOpt/zeroinitializer-gep-load.ll new file mode 100644 index 00000000000..d613601e8d7 --- /dev/null +++ b/llvm/test/Transforms/GlobalOpt/zeroinitializer-gep-load.ll @@ -0,0 +1,11 @@ +; RUN: opt < %s -S -globalopt | FileCheck %s + +@zero = internal global [10 x i32] zeroinitializer + +define i32 @test1(i64 %idx) nounwind { + %arrayidx = getelementptr inbounds [10 x i32]* @zero, i64 0, i64 %idx + %l = load i32* %arrayidx + ret i32 %l +; CHECK: @test1 +; CHECK: ret i32 0 +} |
