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Allow GVN to eliminate read-only function calls when it can detect that they are redundant.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44323 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2007-11-26 02:26:36 +00:00
parent fd94dd58ff
commit 00a6d1448d
3 changed files with 24 additions and 6 deletions
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test/Analysis/BasicAA/pure-const-dce.ll
+1 -1
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@@ -1,5 +1,5 @@
; RUN: llvm-as < %s | opt -basicaa -gvn | llvm-dis | grep TestConst | count 2
; RUN: llvm-as < %s | opt -basicaa -gvn | llvm-dis | grep TestPure | not count 2
; RUN: llvm-as < %s | opt -basicaa -gvn | llvm-dis | grep TestPure | count 3
; RUN: llvm-as < %s | opt -basicaa -gvn | llvm-dis | grep TestNone | count 4
@g = global i32 0 ; <i32*> [#uses=1]