From 01095a5d43bbfde13731688ddcf6048ebb8b7721 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sat, 23 Jul 2016 20:41:05 +0000
Subject: Vendor import of llvm release_39 branch r276489:
 https://llvm.org/svn/llvm-project/llvm/branches/release_39@276489

---
 test/Bitcode/thinlto-function-summary-refgraph.ll | 121 ++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 test/Bitcode/thinlto-function-summary-refgraph.ll

(limited to 'test/Bitcode/thinlto-function-summary-refgraph.ll')

diff --git a/test/Bitcode/thinlto-function-summary-refgraph.ll b/test/Bitcode/thinlto-function-summary-refgraph.ll
new file mode 100644
index 000000000000..73aeb08545e3
--- /dev/null
+++ b/test/Bitcode/thinlto-function-summary-refgraph.ll
@@ -0,0 +1,121 @@
+; Test to check both the callgraph and refgraph in summary
+; RUN: opt -module-summary %s -o %t.o
+; RUN: llvm-bcanalyzer -dump %t.o | FileCheck %s
+
+; See if the calls and other references are recorded properly using the
+; expected value id and other information as appropriate (callsite cout
+; for calls). Use different linkage types for the various test cases to
+; distinguish the test cases here (op1 contains the linkage type).
+; Note that op3 contains the # non-call references.
+; This also ensures that we didn't include a call or reference to intrinsic
+; llvm.ctpop.i8.
+; CHECK:       <GLOBALVAL_SUMMARY_BLOCK
+; Function main contains call to func, as well as address reference to func:
+; CHECK-DAG:    <PERMODULE {{.*}} op0=[[MAINID:[0-9]+]] op1=0 {{.*}} op3=1 op4=[[FUNCID:[0-9]+]] op5=[[FUNCID]] op6=1/>
+; Function W contains a call to func3 as well as a reference to globalvar:
+; CHECK-DAG:    <PERMODULE {{.*}} op0=[[WID:[0-9]+]] op1=5 {{.*}} op3=1 op4=[[GLOBALVARID:[0-9]+]] op5=[[FUNC3ID:[0-9]+]] op6=1/>
+; Function X contains call to foo, as well as address reference to foo
+; which is in the same instruction as the call:
+; CHECK-DAG:    <PERMODULE {{.*}} op0=[[XID:[0-9]+]] op1=1 {{.*}} op3=1 op4=[[FOOID:[0-9]+]] op5=[[FOOID]] op6=1/>
+; Function Y contains call to func2, and ensures we don't incorrectly add
+; a reference to it when reached while earlier analyzing the phi using its
+; return value:
+; CHECK-DAG:    <PERMODULE {{.*}} op0=[[YID:[0-9]+]] op1=8 {{.*}} op3=0 op4=[[FUNC2ID:[0-9]+]] op5=1/>
+; Function Z contains call to func2, and ensures we don't incorrectly add
+; a reference to it when reached while analyzing subsequent use of its return
+; value:
+; CHECK-DAG:    <PERMODULE {{.*}} op0=[[ZID:[0-9]+]] op1=3 {{.*}} op3=0 op4=[[FUNC2ID:[0-9]+]] op5=1/>
+; Variable bar initialization contains address reference to func:
+; CHECK-DAG:    <PERMODULE_GLOBALVAR_INIT_REFS {{.*}} op0=[[BARID:[0-9]+]] op1=0 op2=[[FUNCID]]/>
+; CHECK:  </GLOBALVAL_SUMMARY_BLOCK>
+
+; CHECK-NEXT:  <VALUE_SYMTAB
+; CHECK-DAG:    <ENTRY {{.*}} op0=[[BARID]] {{.*}} record string = 'bar'
+; CHECK-DAG:    <ENTRY {{.*}} op0=[[FUNCID]] {{.*}} record string = 'func'
+; CHECK-DAG:    <ENTRY {{.*}} op0=[[FOOID]] {{.*}} record string = 'foo'
+; CHECK-DAG:    <FNENTRY {{.*}} op0=[[MAINID]] {{.*}} record string = 'main'
+; CHECK-DAG:    <FNENTRY {{.*}} op0=[[WID]] {{.*}} record string = 'W'
+; CHECK-DAG:    <FNENTRY {{.*}} op0=[[XID]] {{.*}} record string = 'X'
+; CHECK-DAG:    <FNENTRY {{.*}} op0=[[YID]] {{.*}} record string = 'Y'
+; CHECK-DAG:    <FNENTRY {{.*}} op0=[[ZID]] {{.*}} record string = 'Z'
+; CHECK-DAG:    <ENTRY {{.*}} op0=[[FUNC2ID]] {{.*}} record string = 'func2'
+; CHECK-DAG:    <ENTRY {{.*}} op0=[[FUNC3ID]] {{.*}} record string = 'func3'
+; CHECK-DAG:    <ENTRY {{.*}} op0=[[GLOBALVARID]] {{.*}} record string = 'globalvar'
+; CHECK:  </VALUE_SYMTAB>
+
+; ModuleID = 'thinlto-function-summary-refgraph.ll'
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+@bar = global void (...)* bitcast (void ()* @func to void (...)*), align 8
+
+@globalvar = global i32 0, align 4
+
+declare void @func() #0
+declare i32 @func2(...) #1
+declare void @foo(i8* %F) #0
+declare i32 @func3(i32* dereferenceable(4)) #2
+
+; Function Attrs: nounwind uwtable
+define weak_odr void @W() #0 {
+entry:
+  %call = tail call i32 @func3(i32* nonnull dereferenceable(4) @globalvar)
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define available_externally void @X() #0 {
+entry:
+  call void @foo(i8* bitcast (void (i8*)* @foo to i8*))
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define private i32 @Y(i32 %i) #0 {
+entry:
+  %cmp3 = icmp slt i32 %i, 10
+  br i1 %cmp3, label %while.body.preheader, label %while.end
+
+while.body.preheader:                             ; preds = %entry
+  br label %while.body
+
+while.body:                                       ; preds = %while.body.preheader, %while.body
+  %j.05 = phi i32 [ %add, %while.body ], [ 0, %while.body.preheader ]
+  %i.addr.04 = phi i32 [ %inc, %while.body ], [ %i, %while.body.preheader ]
+  %inc = add nsw i32 %i.addr.04, 1
+  %call = tail call i32 (...) @func2() #2
+  %add = add nsw i32 %call, %j.05
+  %exitcond = icmp eq i32 %inc, 10
+  br i1 %exitcond, label %while.end.loopexit, label %while.body
+
+while.end.loopexit:                               ; preds = %while.body
+  %add.lcssa = phi i32 [ %add, %while.body ]
+  br label %while.end
+
+while.end:                                        ; preds = %while.end.loopexit, %entry
+  %j.0.lcssa = phi i32 [ 0, %entry ], [ %add.lcssa, %while.end.loopexit ]
+  ret i32 %j.0.lcssa
+}
+
+; Function Attrs: nounwind uwtable
+define linkonce_odr i32 @Z() #0 {
+entry:
+  %call = tail call i32 (...) @func2() #2
+  ret i32 %call
+}
+
+declare i8 @llvm.ctpop.i8(i8)
+
+; Function Attrs: nounwind uwtable
+define i32 @main() #0 {
+entry:
+  %retval = alloca i32, align 4
+  %foo = alloca void (...)*, align 8
+  store i32 0, i32* %retval, align 4
+  store void (...)* bitcast (void ()* @func to void (...)*), void (...)** %foo, align 8
+  %0 = load void (...)*, void (...)** %foo, align 8
+  call void (...) %0()
+  call void @func()
+  call i8  @llvm.ctpop.i8( i8 10 )
+  ret i32 0
+}
-- 
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