eb92157399
To simplify debugging and analysis, particularly for very large
applications with large graphs, this patch adds support for either
highlighting a single context id or allocation's context ids, and/or
only exporting the nodes/edges for a single context id or allocation's
context ids. When highlighting, the specified nodes and edges are a
brighter color and larger.
This can be controlled by the new -memprof-dot-scope={all,alloc,context}
flag which controls how much to export, along with two companion flags:
-memprof-dot-alloc-id=ID
-memprof-dot-context-id=ID
These two are interpreted differently depending on the value of
-memprof-dot-scope (where "all" is the default).
If exporting all, one of the above flags can optionally be passed to
highlight the nodes/edges for the given context id or allocation's
context ids.
If exporting alloc scope, an alloc id must be provided. A context id can
optionally be provided to highlight that context.
If exporting context scope, a context id must be provided.
The ids to use can be obtained either by looking at the full graph, or a
context id can be identified from the -memprof-report-hinted-sizes
output after PR128188 is merged.
266 lines
13 KiB
LLVM
266 lines
13 KiB
LLVM
;; Test callsite context graph exporting to dot with various options.
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;;
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;; The code is similar to that of basic.ll, but with a second allocation.
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;; Check expected error if alloc scope requested without an alloc id.
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; RUN: not --crash opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: -memprof-dot-scope=alloc \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=ERRMISSINGALLOCID
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; ERRMISSINGALLOCID: -memprof-dot-scope=alloc requires -memprof-dot-alloc-id
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;; Check expected error if context scope requested without a context id.
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; RUN: not --crash opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: -memprof-dot-scope=context \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=ERRMISSINGCONTEXTID
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; ERRMISSINGCONTEXTID: -memprof-dot-scope=context requires -memprof-dot-context-id
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;; Check expected error if both alloc and context ids are specified when we are
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;; exporting the full graph to dot. It is unclear which scope to highlight.
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; RUN: not --crash opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: -memprof-dot-alloc-id=0 -memprof-dot-context-id=2 \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=ERRBOTH
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; ERRBOTH: -memprof-dot-scope=all can't have both -memprof-dot-alloc-id and -memprof-dot-context-id
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;; Export full graph (default), without any highlight.
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=IR
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; RUN: cat %t.ccg.postbuild.dot | FileCheck %s -check-prefix=DOTCOMMON --check-prefix=DOTALLANDALLOC0 --check-prefix=DOTALL --check-prefix=DOTALLNONE
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;; Export full graph (default), with highlight of alloc 0.
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: -memprof-dot-alloc-id=0 \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=IR
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; RUN: cat %t.ccg.postbuild.dot | FileCheck %s --check-prefix=DOTCOMMON --check-prefix=DOTALLANDALLOC0 --check-prefix=DOTALL --check-prefix=DOTALLALLOC0
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;; Export full graph (default), with highlight of context 1.
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: -memprof-dot-context-id=1 \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=IR
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; RUN: cat %t.ccg.postbuild.dot | FileCheck %s --check-prefix=DOTCOMMON --check-prefix=DOTALLANDALLOC0 --check-prefix=DOTALL --check-prefix=DOTALLCONTEXT1
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;; Export alloc 0 only, without any highlight.
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: -memprof-dot-scope=alloc -memprof-dot-alloc-id=0 \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=IR
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; RUN: cat %t.ccg.postbuild.dot | FileCheck %s --check-prefix=DOTCOMMON --check-prefix=DOTALLANDALLOC0 --check-prefix=DOTALLOC0NONE
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;; Export alloc 0 only, with highlight of context 1.
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: -memprof-dot-scope=alloc -memprof-dot-alloc-id=0 \
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; RUN: -memprof-dot-context-id=1 \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=IR
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; RUN: cat %t.ccg.postbuild.dot | FileCheck %s --check-prefix=DOTCOMMON --check-prefix=DOTALLANDALLOC0 --check-prefix=DOTALLOC0CONTEXT1
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;; Export context 1 only (which means no highlighting).
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-export-to-dot -memprof-dot-file-path-prefix=%t. \
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; RUN: -memprof-dot-scope=context -memprof-dot-context-id=1 \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=IR
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; RUN: cat %t.ccg.postbuild.dot | FileCheck %s --check-prefix=DOTCOMMON --check-prefix=DOTCONTEXT1
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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 noundef ptr @_Z3foov(), !callsite !0
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%call1 = call noundef ptr @_Z3foov(), !callsite !1
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ret i32 0
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}
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; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
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declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1
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; Function Attrs: nobuiltin
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declare void @_ZdaPv() #2
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define internal ptr @_Z3barv() #3 {
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entry:
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%call = call noalias noundef nonnull ptr @_Znam(i64 noundef 10) #6, !memprof !2, !callsite !7
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%call2 = call noalias noundef nonnull ptr @_Znam(i64 noundef 10) #6, !memprof !13, !callsite !18
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ret ptr null
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}
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declare ptr @_Znam(i64)
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define internal ptr @_Z3bazv() #4 {
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entry:
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%call = call noundef ptr @_Z3barv(), !callsite !8
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ret ptr null
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}
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; Function Attrs: noinline
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define internal ptr @_Z3foov() #5 {
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entry:
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%call = call noundef ptr @_Z3bazv(), !callsite !9
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ret ptr null
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}
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; uselistorder directives
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uselistorder ptr @_Z3foov, { 1, 0 }
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attributes #0 = { "tune-cpu"="generic" }
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attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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attributes #2 = { nobuiltin }
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attributes #3 = { "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" }
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attributes #4 = { "stack-protector-buffer-size"="8" }
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attributes #5 = { noinline }
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attributes #6 = { builtin }
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!0 = !{i64 8632435727821051414}
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!1 = !{i64 -3421689549917153178}
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!2 = !{!3, !5}
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!3 = !{!4, !"notcold", !10}
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!4 = !{i64 9086428284934609951, i64 -5964873800580613432, i64 2732490490862098848, i64 8632435727821051414}
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!5 = !{!6, !"cold", !11, !12}
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!6 = !{i64 9086428284934609951, i64 -5964873800580613432, i64 2732490490862098848, i64 -3421689549917153178}
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!7 = !{i64 9086428284934609951}
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!8 = !{i64 -5964873800580613432}
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!9 = !{i64 2732490490862098848}
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!10 = !{i64 123, i64 100}
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!11 = !{i64 456, i64 200}
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!12 = !{i64 789, i64 300}
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!13 = !{!14, !16}
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!14 = !{!15, !"notcold", !10}
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!15 = !{i64 123, i64 -5964873800580613432, i64 2732490490862098848, i64 8632435727821051414}
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!16 = !{!17, !"cold", !11, !12}
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!17 = !{i64 123, i64 -5964873800580613432, i64 2732490490862098848, i64 -3421689549917153178}
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!18 = !{i64 123}
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; IR: define {{.*}} @main
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;; The first call to foo does not allocate cold memory. It should call the
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;; original functions, which ultimately call the original allocations decorated
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;; with a "notcold" attribute.
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; IR: call {{.*}} @_Z3foov()
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;; The second call to foo allocates cold memory. It should call cloned functions
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;; which ultimately call acloned allocations decorated with a "cold" attribute.
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; IR: call {{.*}} @_Z3foov.memprof.1()
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; IR: define internal {{.*}} @_Z3barv()
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; IR: call {{.*}} @_Znam(i64 noundef 10) #[[NOTCOLD:[0-9]+]]
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; IR: call {{.*}} @_Znam(i64 noundef 10) #[[NOTCOLD]]
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; IR: define internal {{.*}} @_Z3bazv()
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; IR: call {{.*}} @_Z3barv()
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; IR: define internal {{.*}} @_Z3foov()
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; IR: call {{.*}} @_Z3bazv()
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; IR: define internal {{.*}} @_Z3barv.memprof.1()
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; IR: call {{.*}} @_Znam(i64 noundef 10) #[[COLD:[0-9]+]]
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; IR: call {{.*}} @_Znam(i64 noundef 10) #[[COLD]]
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; IR: define internal {{.*}} @_Z3bazv.memprof.1()
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; IR: call {{.*}} @_Z3barv.memprof.1()
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; IR: define internal {{.*}} @_Z3foov.memprof.1()
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; IR: call {{.*}} @_Z3bazv.memprof.1()
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; IR: attributes #[[NOTCOLD]] = { builtin "memprof"="notcold" }
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; IR: attributes #[[COLD]] = { builtin "memprof"="cold" }
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;; Check highlighting. Alloc 0 includes context ids 1 and 2.
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; DOTCOMMON: Node[[BAR:0x[a-z0-9]+]] [shape=record,tooltip="N[[BAR]] ContextIds: 1 2",
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;; This node is highlighted when dumping the whole graph and specifying
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;; alloc 0 or context 1, or if dumping alloc 0 and specifying context 1.
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; DOTALLNONE-SAME: fillcolor="mediumorchid1",
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; DOTALLALLOC0-SAME: fontsize="30",fillcolor="magenta",
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; DOTALLCONTEXT1-SAME: fontsize="30",fillcolor="magenta",
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; DOTALLOC0NONE-SAME: fillcolor="mediumorchid1",
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; DOTALLOC0CONTEXT1-SAME: fontsize="30",fillcolor="magenta",
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; DOTCONTEXT1-SAME: fillcolor="mediumorchid1",
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; DOTCOMMON-SAME: style="filled",label="{OrigId: Alloc0\n_Z3barv -\> _Znam}"];
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; DOTCOMMON: Node[[BAZ:0x[a-z0-9]+]] [shape=record,tooltip="N[[BAZ]] ContextIds: 1 2 3 4",
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;; This node is highlighted when dumping the whole graph and specifying
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;; alloc 0 or context 1, or if dumping alloc 0 and specifying context 1.
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; DOTALLNONE-SAME: fillcolor="mediumorchid1",
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; DOTALLALLOC0-SAME: fontsize="30",fillcolor="magenta",
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; DOTALLCONTEXT1-SAME: fontsize="30",fillcolor="magenta",
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; DOTALLOC0NONE-SAME: fillcolor="mediumorchid1",
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; DOTALLOC0CONTEXT1-SAME: fontsize="30",fillcolor="magenta",
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; DOTCONTEXT1-SAME: fillcolor="mediumorchid1",
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; DOTCOMMON-SAME: style="filled",label="{OrigId: 12481870273128938184\n_Z3bazv -\> _Z3barv}"];
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; DOTCOMMON: Node[[BAZ]] -> Node[[BAR]][tooltip="ContextIds: 1 2",
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;; This edge is highlighted when dumping the whole graph and specifying
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;; alloc 0 or context 1, or if dumping alloc 0 and specifying context 1.
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; DOTALLNONE-SAME: fillcolor="mediumorchid1",color="mediumorchid1"];
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; DOTALLALLOC0-SAME: fillcolor="magenta",color="magenta",penwidth="2.0",weight="2"];
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; DOTALLCONTEXT1-SAME: fillcolor="magenta",color="magenta",penwidth="2.0",weight="2"];
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; DOTALLOC0NONE-SAME: fillcolor="mediumorchid1",color="mediumorchid1"];
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; DOTALLOC0CONTEXT1-SAME: fillcolor="magenta",color="magenta",penwidth="2.0",weight="2"];
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; DOTCONTEXT1-SAME: fillcolor="mediumorchid1",color="mediumorchid1"];
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;; This edge is not in alloc 0 or context 0, so only included when exporting
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;; the whole graph (and never highlighted).
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; DOTALL: Node[[BAZ]] -> Node[[BAR2:0x[a-z0-9]+]][tooltip="ContextIds: 3 4",fillcolor="mediumorchid1",color="mediumorchid1"];
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; DOTCOMMON: Node[[FOO:0x[a-z0-9]+]] [shape=record,tooltip="N[[FOO]] ContextIds: 1 2 3 4",
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;; This node is highlighted when dumping the whole graph and specifying
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;; alloc 0 or context 1, or if dumping alloc 0 and specifying context 1.
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; DOTALLNONE-SAME: fillcolor="mediumorchid1",
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; DOTALLALLOC0-SAME: fontsize="30",fillcolor="magenta",
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; DOTALLCONTEXT1-SAME: fontsize="30",fillcolor="magenta",
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; DOTALLOC0NONE-SAME: fillcolor="mediumorchid1",
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; DOTALLOC0CONTEXT1-SAME: fontsize="30",fillcolor="magenta",
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; DOTCONTEXT1-SAME: fillcolor="mediumorchid1",
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; DOTCOMMON-SAME: style="filled",label="{OrigId: 2732490490862098848\n_Z3foov -\> _Z3bazv}"];
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; DOTCOMMON: Node[[FOO]] -> Node[[BAZ]][tooltip="ContextIds: 1 2 3 4",
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;; This edge is highlighted when dumping the whole graph and specifying
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;; alloc 0 or context 1, or if dumping alloc 0 and specifying context 1.
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; DOTALLNONE-SAME: fillcolor="mediumorchid1",color="mediumorchid1"];
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; DOTALLALLOC0-SAME: fillcolor="magenta",color="magenta",penwidth="2.0",weight="2"];
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; DOTALLCONTEXT1-SAME: fillcolor="magenta",color="magenta",penwidth="2.0",weight="2"];
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; DOTALLOC0NONE-SAME: fillcolor="mediumorchid1",color="mediumorchid1"];
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; DOTALLOC0CONTEXT1-SAME: fillcolor="magenta",color="magenta",penwidth="2.0",weight="2"];
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; DOTCONTEXT1-SAME: fillcolor="mediumorchid1",color="mediumorchid1"];
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; DOTCOMMON: Node[[MAIN1:0x[a-z0-9]+]] [shape=record,tooltip="N[[MAIN1]] ContextIds: 1 3",
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;; This node is highlighted when dumping the whole graph and specifying
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;; alloc 0 or context 1, or if dumping alloc 0 and specifying context 1.
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;; Note that the highlight color is the same as when there is no highlighting.
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; DOTALLALLOC0-SAME: fontsize="30",
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; DOTALLCONTEXT1-SAME: fontsize="30",
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; DOTALLOC0CONTEXT1-SAME: fontsize="30",
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; DOTCOMMON-SAME: fillcolor="brown1",style="filled",label="{OrigId: 8632435727821051414\nmain -\> _Z3foov}"];
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; DOTCOMMON: Node[[MAIN1]] -> Node[[FOO]][tooltip="ContextIds: 1 3",fillcolor="brown1",color="brown1"
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;; This edge is highlighted when dumping the whole graph and specifying
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;; alloc 0 or context 1, or if dumping alloc 0 and specifying context 1.
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; DOTALLNONE-SAME: ];
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; DOTALLALLOC0-SAME: penwidth="2.0",weight="2"];
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; DOTALLCONTEXT1-SAME: penwidth="2.0",weight="2"];
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; DOTALLOC0NONE-SAME: ];
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; DOTALLOC0CONTEXT1-SAME: penwidth="2.0",weight="2"];
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; DOTCONTEXT1-SAME: ];
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; DOTALLANDALLOC0: Node[[MAIN2:0x[a-z0-9]+]] [shape=record,tooltip="N[[MAIN2]] ContextIds: 2 4",
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;; This node is highlighted when dumping the whole graph and specifying
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;; alloc 0. Note that the unhighlighted color is different when there is any
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;; highlighting (lightskyblue) vs no highlighting (cyan).
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; DOTALLNONE-SAME: fillcolor="cyan",
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; DOTALLALLOC0-SAME: fontsize="30",fillcolor="cyan",
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; DOTALLCONTEXT1-SAME: fillcolor="lightskyblue",
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; DOTALLOC0NONE-SAME: fillcolor="cyan",
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; DOTALLOC0CONTEXT1-SAME: fillcolor="lightskyblue",
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; DOTALLANDALLOC0-SAME: style="filled",label="{OrigId: 15025054523792398438\nmain -\> _Z3foov}"];
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; DOTALLANDALLOC0: Node[[MAIN2]] -> Node[[FOO]][tooltip="ContextIds: 2 4",
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;; This edge is highlighted when dumping the whole graph and specifying
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;; alloc 0. Note that the unhighlighted color is different when there is any
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;; highlighting (lightskyblue) vs no highlighting (cyan).
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; DOTALLNONE-SAME: fillcolor="cyan",color="cyan"];
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; DOTALLALLOC0-SAME: fillcolor="cyan",color="cyan",penwidth="2.0",weight="2"];
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; DOTALLCONTEXT1-SAME: fillcolor="lightskyblue",color="lightskyblue"];
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; DOTALLOC0NONE-SAME: fillcolor="cyan",color="cyan"];
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; DOTALLOC0CONTEXT1-SAME: fillcolor="lightskyblue",color="lightskyblue"];
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;; This edge is not in alloc 0 or context 0, so only included when exporting
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;; the whole graph (and never highlighted).
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; DOTALL: Node[[BAR2]] [shape=record,tooltip="N[[BAR2]] ContextIds: 3 4",fillcolor="mediumorchid1",style="filled",label="{OrigId: Alloc2\n_Z3barv -\> _Znam}"];
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