| ;; Test that passing -supports-hot-cold-new to the LTO link allows context |
| ;; disambiguation to proceed, and also prevents memprof metadata and attributes |
| ;; from being removed from the LTO backend, and vice versa without passing |
| ;; -supports-hot-cold-new. |
| |
| ;; Note that this tests regular LTO (with a summary) due to the module flag |
| ;; disabling ThinLTO. |
| |
| ;; First check with -supports-hot-cold-new. |
| ; RUN: opt -module-summary %s >%t.o |
| ; RUN: llvm-lto2 run %t.o -enable-memprof-context-disambiguation \ |
| ; RUN: -supports-hot-cold-new \ |
| ; RUN: -r=%t.o,main,plx \ |
| ; RUN: -r=%t.o,_Znam, \ |
| ; RUN: -memprof-dump-ccg \ |
| ; RUN: -save-temps \ |
| ; RUN: -o %t.out 2>&1 | FileCheck %s --check-prefix=DUMP |
| ; DUMP: Callsite Context Graph: |
| |
| ; RUN: llvm-dis %t.out.0.0.preopt.bc -o - | FileCheck %s --check-prefix=IR |
| ; IR: !memprof {{.*}} !callsite |
| ; IR: "memprof"="cold" |
| |
| ;; Next check without -supports-hot-cold-new, we should not perform |
| ;; context disambiguation, and we should strip memprof metadata and |
| ;; attributes before optimization. |
| ; RUN: llvm-lto2 run %t.o -enable-memprof-context-disambiguation \ |
| ; RUN: -r=%t.o,main,plx \ |
| ; RUN: -r=%t.o,_Znam, \ |
| ; RUN: -memprof-dump-ccg \ |
| ; RUN: -save-temps \ |
| ; RUN: -o %t.out 2>&1 | FileCheck %s --allow-empty \ |
| ; RUN: --implicit-check-not "Callsite Context Graph:" |
| |
| ; RUN: llvm-dis %t.out.0.0.preopt.bc -o - | FileCheck %s \ |
| ; RUN: --implicit-check-not "!memprof" --implicit-check-not "!callsite" \ |
| ; RUN: --implicit-check-not "memprof"="cold" |
| |
| source_filename = "memprof-supports-hot-cold-new.ll" |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define i32 @main() #0 { |
| entry: |
| %call = call ptr @_Znam(i64 0), !memprof !0, !callsite !5 |
| %call2 = call ptr @_Znam(i64 0) #1 |
| ret i32 0 |
| } |
| |
| declare ptr @_Znam(i64) |
| |
| attributes #0 = { noinline optnone } |
| attributes #1 = { "memprof"="cold" } |
| |
| !llvm.module.flags = !{!6} |
| |
| !0 = !{!1, !3} |
| !1 = !{!2, !"notcold"} |
| !2 = !{i64 9086428284934609951, i64 -5964873800580613432, i64 2732490490862098848, i64 8632435727821051414} |
| !3 = !{!4, !"cold"} |
| !4 = !{i64 9086428284934609951, i64 -5964873800580613432, i64 2732490490862098848, i64 -3421689549917153178} |
| !5 = !{i64 9086428284934609951} |
| |
| ;; Force regular LTO even though we have a summary. |
| !6 = !{i32 1, !"ThinLTO", i32 0} |