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-rw-r--r--llvm/test/Transforms/PGOProfile/data-access-profile.ll83
1 files changed, 62 insertions, 21 deletions
diff --git a/llvm/test/Transforms/PGOProfile/data-access-profile.ll b/llvm/test/Transforms/PGOProfile/data-access-profile.ll
index 29198f34..205184b 100644
--- a/llvm/test/Transforms/PGOProfile/data-access-profile.ll
+++ b/llvm/test/Transforms/PGOProfile/data-access-profile.ll
@@ -3,55 +3,72 @@
; RUN: rm -rf %t && split-file %s %t && cd %t
-;; Read a text profile and merge it into indexed profile.
+;; Read text profiles and merge them into indexed profiles.
; RUN: llvm-profdata merge --memprof-version=4 memprof.yaml -o memprof.profdata
+; RUN: llvm-profdata merge --memprof-version=4 memprof-no-dap.yaml -o memprof-no-dap.profdata
;; Run optimizer pass on an IR module without IR functions, and test that global
;; variables in the module could be annotated (i.e., no early return),
; RUN: opt -passes='memprof-use<profile-filename=memprof.profdata>' -memprof-annotate-static-data-prefix \
-; RUN: -debug-only=memprof -stats -S funcless-module.ll -o - 2>&1 | FileCheck %s --check-prefixes=LOG,PREFIX,STAT
+; RUN: -debug-only=memprof -stats -S funcless-module.ll -o - 2>&1 | FileCheck %s --check-prefixes=LOG,IR,STAT
;; Run optimizer pass on the IR, and check the section prefix.
; RUN: opt -passes='memprof-use<profile-filename=memprof.profdata>' -memprof-annotate-static-data-prefix \
-; RUN: -debug-only=memprof -stats -S input.ll -o - 2>&1 | FileCheck %s --check-prefixes=LOG,PREFIX,STAT
+; RUN: -debug-only=memprof -stats -S input.ll -o - 2>&1 | FileCheck %s --check-prefixes=LOG,IR,STAT
-;; Run optimizer pass without explicitly setting -memprof-annotate-static-data-prefix.
-;; The output text IR shouldn't have `section_prefix`
+;; Run memprof without providing memprof data. Test that IR has module flag
+;; `EnableDataAccessProf` as 0.
+; RUN: opt -passes='memprof-use<profile-filename=memprof-no-dap.profdata>' -memprof-annotate-static-data-prefix \
+; RUN: -debug-only=memprof -stats -S input.ll -o - 2>&1 | FileCheck %s --check-prefix=FLAG
+
+;; Run memprof without explicitly setting -memprof-annotate-static-data-prefix.
+;; The output text IR shouldn't have `section_prefix` or EnableDataAccessProf module flag.
; RUN: opt -passes='memprof-use<profile-filename=memprof.profdata>' \
-; RUN: -debug-only=memprof -stats -S input.ll -o - | FileCheck %s --implicit-check-not="section_prefix"
+; RUN: -debug-only=memprof -stats -S input.ll -o - | FileCheck %s --check-prefix=FLAGLESS --implicit-check-not="section_prefix"
; LOG: Skip annotating string literal .str
; LOG: Global variable var1 is annotated as hot
; LOG: Global variable var2.llvm.125 is annotated as hot
; LOG: Global variable bar is not annotated
; LOG: Global variable foo is annotated as unlikely
-; LOG: Global variable var3 has explicit section name. Skip annotating.
-; LOG: Global variable var4 has explicit section name. Skip annotating.
+; LOG: Skip annotation for var3 due to explicit section name.
+; LOG: Skip annotation for var4 due to explicit section name.
+; LOG: Skip annotation for llvm.fake_var due to name starts with `llvm.`.
+; LOG: Skip annotation for qux due to linker declaration.
;; String literals are not annotated.
-; PREFIX: @.str = unnamed_addr constant [5 x i8] c"abcde"
-; PREFIX-NOT: section_prefix
-; PREFIX: @var1 = global i32 123, !section_prefix !0
+; IR: @.str = unnamed_addr constant [5 x i8] c"abcde"
+; IR-NOT: section_prefix
+; IR: @var1 = global i32 123, !section_prefix !0
;; @var.llvm.125 will be canonicalized to @var2 for profile look-up.
-; PREFIX-NEXT: @var2.llvm.125 = global i64 0, !section_prefix !0
+; IR-NEXT: @var2.llvm.125 = global i64 0, !section_prefix !0
;; @bar is not seen in hot symbol or known symbol set, so it won't get a section
;; prefix. Test this by testing that there is no section_prefix between @bar and
;; @foo.
-; PREFIX-NEXT: @bar = global i16 3
-; PREFIX-NOT: !section_prefix
+; IR-NEXT: @bar = global i16 3
+; IR-NOT: !section_prefix
;; @foo is unlikely.
-; PREFIX-NEXT: @foo = global i8 2, !section_prefix !1
+; IR-NEXT: @foo = global i8 2, !section_prefix !1
+
+; IR-NEXT: @var3 = constant [2 x i32] [i32 12345, i32 6789], section "sec1"
+; IR-NEXT: @var4 = constant [1 x i64] [i64 98765] #0
+
+; IR: @llvm.fake_var = global i32 123
+; IR-NOT: !section_prefix
+; IR: @qux = external global i64
+; IR-NOT: !section_prefix
-; PREFIX-NEXT: @var3 = constant [2 x i32] [i32 12345, i32 6789], section "sec1"
-; PREFIX-NEXT: @var4 = constant [1 x i64] [i64 98765] #0
+; IR: attributes #0 = { "rodata-section"="sec2" }
-; PREFIX: attributes #0 = { "rodata-section"="sec2" }
+; IR: !0 = !{!"section_prefix", !"hot"}
+; IR-NEXT: !1 = !{!"section_prefix", !"unlikely"}
+; IR-NEXT: !2 = !{i32 2, !"EnableDataAccessProf", i32 1}
-; PREFIX: !0 = !{!"section_prefix", !"hot"}
-; PREFIX-NEXT: !1 = !{!"section_prefix", !"unlikely"}
+; FLAG: !{i32 2, !"EnableDataAccessProf", i32 0}
+; FLAGLESS-NOT: EnableDataAccessProf
; STAT: 1 memprof - Number of global vars annotated with 'unlikely' section prefix.
; STAT: 2 memprof - Number of global vars with user-specified section (not annotated).
@@ -72,6 +89,24 @@ DataAccessProfiles:
- foo
KnownColdStrHashes: [ 999, 1001 ]
...
+;--- memprof-no-dap.yaml
+---
+# A memprof file with without data access profiles. The heap records are simplified
+# to pass profile parsing and don't need to match the IR.
+HeapProfileRecords:
+ - GUID: 0xdeadbeef12345678
+ AllocSites:
+ - Callstack:
+ - { Function: 0x1111111111111111, LineOffset: 11, Column: 10, IsInlineFrame: true }
+ MemInfoBlock:
+ AllocCount: 111
+ TotalSize: 222
+ TotalLifetime: 333
+ TotalLifetimeAccessDensity: 444
+ CallSites:
+ - Frames:
+ - { Function: 0x5555555555555555, LineOffset: 55, Column: 50, IsInlineFrame: true }
+...
;--- input.ll
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
@@ -84,11 +119,14 @@ target triple = "x86_64-unknown-linux-gnu"
@foo = global i8 2
@var3 = constant [2 x i32][i32 12345, i32 6789], section "sec1"
@var4 = constant [1 x i64][i64 98765] #0
+@llvm.fake_var = global i32 123
+@qux = external global i64
define i32 @func() {
%a = load i32, ptr @var1
%b = load i32, ptr @var2.llvm.125
- %ret = call i32 (...) @func_taking_arbitrary_param(i32 %a, i32 %b)
+ %c = load i32, ptr @llvm.fake_var
+ %ret = call i32 (...) @func_taking_arbitrary_param(i32 %a, i32 %b, i32 %c)
ret i32 %ret
}
@@ -108,5 +146,8 @@ target triple = "x86_64-unknown-linux-gnu"
@foo = global i8 2
@var3 = constant [2 x i32][i32 12345, i32 6789], section "sec1"
@var4 = constant [1 x i64][i64 98765] #0
+@llvm.fake_var = global i32 123
+@qux = external global i64
+
attributes #0 = { "rodata-section"="sec2" }
generated by cgit v1.1 at 2025-10-14 23:21:05 +0000