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091cf86389
Summary: The bitcode format is described in this document: https://drive.google.com/file/d/0B036uwnWM6RWdnBLakxmeDdOeXc/view For more info on ThinLTO see: https://sites.google.com/site/llvmthinlto The first customer is ThinLTO, however the data structures are designed and named more generally based on prior feedback. There are a few comments regarding how certain interfaces are used by ThinLTO, and the options added here to gold currently have ThinLTO-specific names as the behavior they provoke is currently ThinLTO-specific. This patch includes support for generating per-module function indexes, the combined index file via the gold plugin, and several tests (more are included with the associated clang patch D11908). Reviewers: dexonsmith, davidxl, joker.eph Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D13107 llvm-svn: 249270
46 lines
1.1 KiB
LLVM
46 lines
1.1 KiB
LLVM
; RUN: llvm-as -function-summary < %s | llvm-bcanalyzer -dump | FileCheck %s -check-prefix=BC
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; Check for function summary block/records.
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; BC: <FUNCTION_SUMMARY_BLOCK
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; BC-NEXT: <PERMODULE_ENTRY
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; BC-NEXT: <PERMODULE_ENTRY
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; BC-NEXT: <PERMODULE_ENTRY
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; BC-NEXT: </FUNCTION_SUMMARY_BLOCK
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; RUN: llvm-as -function-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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; 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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