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[PATCH] [PGO] Fixed cast operation in emIntrinsicVisitor::instrumentOneMemIntrinsic. 

Reviewers: xur, efriedma, davidxl

Reviewed By: davidxl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D34293

llvm-svn: 305737
This commit is contained in:
Ana Pazos 2017-06-19 20:04:33 +00:00
parent 4c5c02a448
commit f731bde064
2 changed files with 15 additions and 1 deletions
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2
llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
View File

@ -1177,7 +1177,7 @@ void MemIntrinsicVisitor::instrumentOneMemIntrinsic(MemIntrinsic &MI) {
Builder.CreateCall(
Intrinsic::getDeclaration(M, Intrinsic::instrprof_value_profile),
{llvm::ConstantExpr::getBitCast(FuncNameVar, I8PtrTy),
Builder.getInt64(FuncHash), Builder.CreatePtrToInt(Length, Int64Ty),
Builder.getInt64(FuncHash), Builder.CreateZExtOrTrunc(Length, Int64Ty),
Builder.getInt32(IPVK_MemOPSize), Builder.getInt32(CurCtrId)});
++CurCtrId;
}

14
llvm/test/Transforms/PGOProfile/memop_size_from_strlen.ll Normal file
View File

@ -0,0 +1,14 @@
; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i32, i1)
declare i32 @strlen(i8* nocapture)
; CHECK_LABEL: test
; CHECK: %1 = zext i32 %c to i64
; CHECK: call void @llvm.instrprof.value.profile(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @__profn_test, i32 0, i32 0), i64 12884901887, i64 %1, i32 1, i32 0)
define void @test(i8* %a, i8* %p) {
%c = call i32 @strlen(i8* %p)
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %p, i32 %c, i32 1, i1 false)
ret void
}