2d5487cf44
Summary: This is the first step in also serializing the index out to LLVM assembly. The per-module summary written to bitcode is moved out of the bitcode writer and to a new analysis pass (ModuleSummaryIndexWrapperPass). The pass itself uses a new builder class to compute index, and the builder class is used directly in places where we don't have a pass manager (e.g. llvm-as). Because we are computing summaries outside of the bitcode writer, we no longer can use value ids created by the bitcode writer's ValueEnumerator. This required changing the reference graph edge type to use a new ValueInfo class holding a union between a GUID (combined index) and Value* (permodule index). The Value* are converted to the appropriate value ID during bitcode writing. Also, this enables removal of the BitWriter library's dependence on the Analysis library that was previously required for the summary computation. Reviewers: joker.eph Subscribers: joker.eph, llvm-commits Differential Revision: http://reviews.llvm.org/D18763 llvm-svn: 265941
55 lines
1.7 KiB
LLVM
55 lines
1.7 KiB
LLVM
; RUN: llvm-as -module-summary < %s | llvm-bcanalyzer -dump | FileCheck %s -check-prefix=BC
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; Check for summary block/records.
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; Check the value ids in the summary entries against the
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; same in the ValueSumbolTable, to ensure the ordering is stable.
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; Also check the linkage field on the summary entries.
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; BC: <GLOBALVAL_SUMMARY_BLOCK
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; BC-NEXT: <PERMODULE {{.*}} op0=1 op1=0
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; BC-NEXT: <PERMODULE {{.*}} op0=2 op1=0
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; BC-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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; BC-NEXT: <VALUE_SYMTAB
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; BC-NEXT: <FNENTRY {{.*}} op0=1 {{.*}}> record string = 'foo'
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; BC-NEXT: <FNENTRY {{.*}} op0=2 {{.*}}> record string = 'bar'
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; BC-NEXT: <FNENTRY {{.*}} op0=4 {{.*}}> record string = 'f'
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; RUN: llvm-as -module-summary < %s | llvm-dis | FileCheck %s
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; Check that this round-trips correctly.
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; ModuleID = '<stdin>'
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK: define i32 @foo()
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; Function Attrs: nounwind uwtable
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define i32 @foo() #0 {
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entry:
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ret i32 1
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}
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; CHECK: define i32 @bar(i32 %x)
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; Function Attrs: nounwind uwtable
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define i32 @bar(i32 %x) #0 {
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entry:
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ret i32 %x
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}
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; FIXME: Anonymous function and alias not currently in summary until
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; follow on fixes to rename anonymous functions and emit alias summary
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; entries are committed.
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; Check an anonymous function as well, since in that case only the alias
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; ends up in the value symbol table and having a summary.
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@f = alias void (), void ()* @0 ; <void ()*> [#uses=0]
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@h = external global void ()* ; <void ()*> [#uses=0]
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define internal void @0() nounwind {
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entry:
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store void()* @0, void()** @h
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br label %return
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return: ; preds = %entry
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ret void
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}
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