[PATCH] D84953: [PGO][test] Add test to check memops changes function hash

[Hiroshi Yamauchi via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGdcdc77619e1a: [PGO][test] Add test to check memops changes function hash (authored by yamauchi).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D84953/new/

https://reviews.llvm.org/D84953

Files:
  llvm/test/Transforms/PGOProfile/memop_hash.ll


Index: llvm/test/Transforms/PGOProfile/memop_hash.ll
===================================================================
--- /dev/null
+++ llvm/test/Transforms/PGOProfile/memop_hash.ll
@@ -0,0 +1,25 @@
+; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s
+; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s
+
+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"
+
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1)
+
+define i64 @foo1(i8* %a, i8* %b, i32 %s) {
+entry:
+  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %b, i32 %s, i1 false);
+  ret i64 0
+}
+
+define i64 @foo2(i8* %a, i8* %b, i32 %s) {
+entry:
+  ret i64 0
+}
+
+; The two hashes should not be equal as the existence of the memcpy should change the hash.
+;
+; CHECK: @foo1
+; CHECK: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @__profn_foo1, i32 0, i32 0), i64 [[FOO1_HASH:[0-9]+]], i32 1, i32 0)
+; CHECK: @foo2
+; CHECK-NOT: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @__profn_foo2, i32 0, i32 0), i64 [[FOO1_HASH]], i32 1, i32 0)


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D84953.282251.patch
Type: text/x-patch
Size: 1220 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20200731/4e75b656/attachment.bin>