70 lines
2.8 KiB
LLVM
70 lines
2.8 KiB
LLVM
; REQUIRES: x86-registered-target
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;; Test that passing -supports-hot-cold-new to the thin link prevents memprof
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;; metadata and attributes from being removed from the distributed ThinLTO
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;; backend, and vice versa without passing -supports-hot-cold-new.
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;; First check with -supports-hot-cold-new.
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; RUN: opt -thinlto-bc %s >%t.o
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; RUN: llvm-lto2 run %t.o -save-temps \
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; RUN: -supports-hot-cold-new \
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; RUN: -thinlto-distributed-indexes \
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; RUN: -r=%t.o,main,plx \
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; RUN: -r=%t.o,_Znam, \
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; RUN: -o %t.out
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;; Ensure that the index file reflects the -supports-hot-cold-new, as that is
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;; how the ThinLTO backend behavior is controlled.
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; RUN: llvm-dis %t.out.index.bc -o - | FileCheck %s --check-prefix=CHECK-INDEX-ON
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;; Flags are printed in decimal, but this corresponds to 0x161, and 0x100 is
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;; the value indicating -supports-hot-cold-new was enabled.
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; CHECK-INDEX-ON: flags: 353
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; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t1.o -x ir %t.o -c -fthinlto-index=%t.o.thinlto.bc -save-temps=obj
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; RUN: llvm-dis %t.s.3.import.bc -o - | FileCheck %s --check-prefix=CHECK-IR
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; CHECK-IR: !memprof {{.*}} !callsite
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; CHECK-IR: "memprof"="cold"
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;; Next check without -supports-hot-cold-new, we should not perform
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;; context disambiguation, and we should strip memprof metadata and
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;; attributes before optimization during the distributed backend.
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; RUN: llvm-lto2 run %t.o -save-temps \
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; RUN: -thinlto-distributed-indexes \
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; RUN: -r=%t.o,main,plx \
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; RUN: -r=%t.o,_Znam, \
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; RUN: -o %t.out
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;; Ensure that the index file reflects not having -supports-hot-cold-new.
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; RUN: llvm-dis %t.out.index.bc -o - | FileCheck %s --check-prefix=CHECK-INDEX-OFF
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;; Flags are printed in decimal, but this corresponds to 0x61, without 0x100 set.
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; CHECK-INDEX-OFF: flags: 97
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; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t1.o -x ir %t.o -c -fthinlto-index=%t.o.thinlto.bc -save-temps=obj
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; RUN: llvm-dis %t.s.3.import.bc -o - | FileCheck %s \
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; RUN: --implicit-check-not "!memprof" --implicit-check-not "!callsite" \
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; RUN: --implicit-check-not "memprof"="cold"
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source_filename = "thinlto-distributed-supports-hot-cold-new.ll"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define i32 @main() #0 {
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entry:
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%call = call ptr @_Znam(i64 0), !memprof !0, !callsite !5
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%call1 = call ptr @_Znam(i64 0) #1
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ret i32 0
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}
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declare ptr @_Znam(i64)
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attributes #0 = { noinline optnone }
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attributes #1 = { "memprof"="cold" }
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!0 = !{!1, !3}
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!1 = !{!2, !"notcold"}
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!2 = !{i64 9086428284934609951, i64 -5964873800580613432, i64 2732490490862098848, i64 8632435727821051414}
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!3 = !{!4, !"cold"}
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!4 = !{i64 9086428284934609951, i64 -5964873800580613432, i64 2732490490862098848, i64 -3421689549917153178}
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!5 = !{i64 9086428284934609951}
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