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[ThinLTO] Internalize readonly globals

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This patch allows internalising globals if all accesses to them
(from live functions) are from non-volatile load instructions

Differential revision: https://reviews.llvm.org/D49362


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346584 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eugene Leviant
2018-11-10 08:31:21 +00:00
parent 01568d51f0
commit 10c84a8f35
42 changed files with 774 additions and 89 deletions
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test/Bitcode/thinlto-function-summary-callgraph-cast.ll
+2 -2
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@@ -6,9 +6,9 @@
; CHECK: <GLOBALVAL_SUMMARY_BLOCK
; CHECK-NEXT: <VERSION
; "op7" is a call to "callee" function.
; CHECK-NEXT: <PERMODULE {{.*}} op7=3 op8=[[ALIASID:[0-9]+]]/>
; CHECK-NEXT: <PERMODULE {{.*}} op8=3 op9=[[ALIASID:[0-9]+]]/>
; "another_caller" has only references but no calls.
; CHECK-NEXT: <PERMODULE {{.*}} op4=3 {{.*}} op7={{[0-9]+}}/>
; CHECK-NEXT: <PERMODULE {{.*}} op4=3 {{.*}} op8={{[0-9]+}}/>
; CHECK-NEXT: <PERMODULE {{.*}} op0=[[ALIASEEID:[0-9]+]]
; CHECK-NEXT: <ALIAS {{.*}} op0=[[ALIASID]] {{.*}} op2=[[ALIASEEID]]/>
; CHECK-NEXT: </GLOBALVAL_SUMMARY_BLOCK>