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llvm-mirror/test/Transforms/PGOProfile/do-not-instrument.ll
Betul Buyukkurt 60f19e2f50 [PGO] Avoid instrumenting direct callee's at value sites.
Direct callees' that are cast to other function prototypes,
show up in the Call/Invoke instructions as ConstantExpr's.
Currently llvm::CallSite's getCalledFunction() fails
to return the callees in such expressions as direct calls.
Value profiling should avoid instrumenting such cases. Mostly NFC.

llvm-svn: 265330
2016-04-04 18:56:36 +00:00

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770 B
LLVM

; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.12.0"
define i32 @f1() {
; CHECK-LABEL: @f1
entry:
; CHECK: call void @llvm.instrprof.increment
; CHECK-NOT: ptrtoint void (i8*)* asm sideeffect
; CHECK-NOT: call void @llvm.instrprof.value.profile
; CHECK: tail call void asm sideeffect
tail call void asm sideeffect "", "imr,~{memory},~{dirflag},~{fpsr},~{flags}"(i8* undef) #0
ret i32 0
}
define i32 @f2() {
entry:
; CHECK: call void @llvm.instrprof.increment
; CHECK-NOT: call void @llvm.instrprof.value.profile
call void (i32, ...) bitcast (void (...)* @foo to void (i32, ...)*)(i32 21)
ret i32 0
}
declare void @foo(...) #0
attributes #0 = { nounwind }