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9896d761e8
Summary: Count the per-module number of basic blocks when the module summary is computed and sum them up during Thin LTO indexing. This is used to estimate the working set size under the partial sample PGO. This is split off of D79831. Reviewers: davidxl, espindola Subscribers: emaste, inglorion, hiraditya, MaskRay, steven_wu, dexonsmith, arphaman, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D80403
82 lines
2.3 KiB
LLVM
82 lines
2.3 KiB
LLVM
; RUN: opt -name-anon-globals -module-summary < %s | llvm-bcanalyzer -dump | FileCheck %s -check-prefix=BC
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; RUN: opt -passes=name-anon-globals -module-summary < %s | llvm-bcanalyzer -dump | FileCheck %s -check-prefix=BC
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; Check for summary block/records.
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; BC: <SOURCE_FILENAME
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; "h"
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; BC-NEXT: <GLOBALVAR {{.*}} op0=0 op1=1
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; "foo"
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; BC-NEXT: <FUNCTION op0=1 op1=3
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; "bar"
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; BC-NEXT: <FUNCTION op0=4 op1=3
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; "anon.[32 chars].0"
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; BC-NEXT: <FUNCTION op0=7 op1=39
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; "variadic"
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; BC-NEXT: <FUNCTION op0=46 op1=8
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; "llvm.va_start"
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; BC-NEXT: <FUNCTION op0=54 op1=13
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; "f"
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; BC-NEXT: <ALIAS op0=67 op1=1
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; BC: <GLOBALVAL_SUMMARY_BLOCK
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; BC-NEXT: <VERSION
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; BC-NEXT: <FLAGS
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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: <PERMODULE {{.*}} op0=3 op1=7
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; BC-NEXT: <PERMODULE {{.*}} op0=4 op1=0 op2=4 op3=0
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; BC-NEXT: <ALIAS {{.*}} op0=6 op1=0 op2=3
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; BC-NEXT: <BLOCK_COUNT op0=5/>
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; BC-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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; BC: <STRTAB_BLOCK
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; BC-NEXT: blob data = 'hfoobaranon.{{................................}}.0variadicllvm.va_startf{{.*}}'
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; RUN: opt -name-anon-globals -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 globals 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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define i32 @variadic(...) {
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%ap = alloca i8*, align 8
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%ap.0 = bitcast i8** %ap to i8*
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call void @llvm.va_start(i8* %ap.0)
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ret i32 42
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}
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declare void @llvm.va_start(i8*) nounwind
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