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1;; Test callsite context graph generation for call graph with two memprof2;; contexts and multiple levels of inlining, requiring generation of new3;; fused nodes to represent the inlined sequence while matching callsite4;; nodes onto the graph. In particular this tests the case where a function5;; has inlined a callee containing an inlined callee.6;;7;; Original code looks like:8;;9;; char *bar() __attribute__((noinline)) {10;; return new char[10];11;; }12;;13;; char *baz() {14;; return bar();15;; }16;;17;; char *foo() {18;; return baz();19;; }20;;21;; int main(int argc, char **argv) {22;; char *x = foo();23;; char *y = foo();24;; memset(x, 0, 10);25;; memset(y, 0, 10);26;; delete[] x;27;; sleep(10);28;; delete[] y;29;; return 0;30;; }31;;32;; Code compiled with -mllvm -memprof-ave-lifetime-cold-threshold=5 so that the33;; memory freed after sleep(10) results in cold lifetimes.34;;35;; Both foo and baz are inlined into main, at both foo callsites.36;; We should update the graph for new fused nodes for both of those inlined37;; callsites to bar.38;;39;; Note that baz and bar are both dead due to the inlining, but have been left40;; in the input IR to ensure that the MIB call chain is matched to the longer41;; inline sequences from main.42;;43;; The IR was then reduced using llvm-reduce with the expected FileCheck input.44 45; RUN: opt -thinlto-bc %s >%t.o46; RUN: llvm-lto2 run %t.o -enable-memprof-context-disambiguation \47; RUN: -supports-hot-cold-new \48; RUN: -r=%t.o,main,plx \49; RUN: -r=%t.o,_Z3barv,plx \50; RUN: -r=%t.o,_Z3bazv,plx \51; RUN: -r=%t.o,_Z3foov,plx \52; RUN: -r=%t.o,_ZdaPv, \53; RUN: -r=%t.o,sleep, \54; RUN: -r=%t.o,_Znam, \55; RUN: -memprof-verify-ccg -memprof-verify-nodes -memprof-dump-ccg \56; RUN: -o %t.out 2>&1 | FileCheck %s --check-prefix=DUMP57 58 59target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"60target triple = "x86_64-unknown-linux-gnu"61 62define ptr @_Z3barv() {63entry:64 %call = call ptr @_Znam(i64 0), !memprof !0, !callsite !565 ret ptr null66}67 68declare ptr @_Znam(i64)69 70declare ptr @_Z3bazv()71 72declare ptr @_Z3foov()73 74define i32 @main() {75delete.end5:76 %call.i.i = call ptr @_Z3barv(), !callsite !677 %call.i.i8 = call ptr @_Z3barv(), !callsite !778 ret i32 079}80 81declare void @_ZdaPv()82 83declare i32 @sleep()84 85!0 = !{!1, !3}86!1 = !{!2, !"notcold"}87!2 = !{i64 9086428284934609951, i64 -5964873800580613432, i64 2732490490862098848, i64 8632435727821051414}88!3 = !{!4, !"cold"}89!4 = !{i64 9086428284934609951, i64 -5964873800580613432, i64 2732490490862098848, i64 -3421689549917153178}90!5 = !{i64 9086428284934609951}91!6 = !{i64 -5964873800580613432, i64 2732490490862098848, i64 8632435727821051414}92!7 = !{i64 -5964873800580613432, i64 2732490490862098848, i64 -3421689549917153178}93 94 95; DUMP: CCG before cloning:96; DUMP: Callsite Context Graph:97; DUMP: Node [[BAR:0x[a-z0-9]+]]98; DUMP: Versions: 1 MIB:99; DUMP: AllocType 1 StackIds: 0, 1, 2100; DUMP: AllocType 2 StackIds: 0, 1, 3101; DUMP: (clone 0)102; DUMP: AllocTypes: NotColdCold103; DUMP: ContextIds: 1 2104; DUMP: CalleeEdges:105; DUMP: CallerEdges:106; DUMP: Edge from Callee [[BAR]] to Caller: [[MAIN1:0x[a-z0-9]+]] AllocTypes: NotCold ContextIds: 1107; DUMP: Edge from Callee [[BAR]] to Caller: [[MAIN2:0x[a-z0-9]+]] AllocTypes: Cold ContextIds: 2108 109;; This is the node synthesized for the first inlined call chain of main->foo->baz110; DUMP: Node [[MAIN1]]111; DUMP: Callee: 17377440600225628772 (_Z3barv) Clones: 0 StackIds: 0, 1, 2 (clone 0)112; DUMP: AllocTypes: NotCold113; DUMP: ContextIds: 1114; DUMP: CalleeEdges:115; DUMP: Edge from Callee [[BAR]] to Caller: [[MAIN1]] AllocTypes: NotCold ContextIds: 1116; DUMP: CallerEdges:117 118;; This is the node synthesized for the second inlined call chain of main->foo->baz119; DUMP: Node [[MAIN2]]120; DUMP: Callee: 17377440600225628772 (_Z3barv) Clones: 0 StackIds: 0, 1, 3 (clone 0)121; DUMP: AllocTypes: Cold122; DUMP: ContextIds: 2123; DUMP: CalleeEdges:124; DUMP: Edge from Callee [[BAR]] to Caller: [[MAIN2]] AllocTypes: Cold ContextIds: 2125; DUMP: CallerEdges:126