xref: /llvm-project/llvm/test/Transforms/PGOProfile/indirect_call_profile.ll (revision 9ff36df5a4a7d52c51e950522870bb64912688d2)

; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
; RUN: opt < %s -passes=pgo-instr-gen,instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=LOWER
; RUN: opt < %s -passes=pgo-instr-gen,instrprof -vp-static-alloc=false -S | FileCheck %s --check-prefix=LOWER

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"

$novp_inline = comdat any
$vp_inline = comdat any

@bar = external global ptr, align 8

; GEN: @__profn_novp_inline = linkonce_odr hidden constant [11 x i8] c"novp_inline"
; GEN: @__profn_foo = private constant [3 x i8] c"foo"
; GEN: @__profn_vp_inline = linkonce_odr hidden constant [9 x i8] c"vp_inline"

;; Test that a linkonce function's address is recorded.
;; We allow a linkonce profd to be private if the function does not use value profiling.
; LOWER:      @__profd_novp_inline.[[HASH:[0-9]+]] = private global {{.*}} @__profc_novp_inline.[[HASH]]
; LOWER-SAME:   ptr @novp_inline
; LOWER:      @__profd_foo = private {{.*}} @__profc_foo

;; __profd_vp_inline.[[#]] is referenced by code and may be referenced by other
;; text sections due to inlining. It can't be local because a linker error would
;; occur if a prevailing text section references the non-prevailing local symbol.
; LOWER:      @__profd_vp_inline.[[FOO_HASH:[0-9]+]] = linkonce_odr hidden {{.*}} @__profc_vp_inline.[[FOO_HASH]]
; LOWER-SAME:   ptr @vp_inline

define linkonce_odr void @novp_inline() comdat {
  ret void
}

define void @foo() {
entry:
; GEN: @foo()
; GEN: entry:
; GEN-NEXT: call void @llvm.instrprof.increment(ptr @__profn_foo, i64 [[#FOO_HASH:]], i32 1, i32 0)
  %tmp = load ptr, ptr @bar, align 8
; GEN: [[ICALL_TARGET:%[0-9]+]] = ptrtoint ptr %tmp to i64
; GEN-NEXT: call void @llvm.instrprof.value.profile(ptr @__profn_foo, i64 [[#FOO_HASH]], i64 [[ICALL_TARGET]], i32 0, i32 0)
; LOWER: call void @__llvm_profile_instrument_target(i64 %1, ptr @__profd_foo, i32 0)
  call void %tmp()
  ret void
}

define linkonce_odr void @vp_inline() comdat {
entry:
; GEN: @vp_inline()
; GEN: entry:
; GEN-NEXT: call void @llvm.instrprof.increment(ptr @__profn_vp_inline, i64 [[#FOO_HASH:]], i32 1, i32 0)
  %tmp = load ptr, ptr @bar, align 8
; GEN: [[ICALL_TARGET:%[0-9]+]] = ptrtoint ptr %tmp to i64
; GEN-NEXT: call void @llvm.instrprof.value.profile(ptr @__profn_vp_inline, i64 [[#FOO_HASH]], i64 [[ICALL_TARGET]], i32 0, i32 0)
; LOWER: call void @__llvm_profile_instrument_target(i64 %1, ptr @__profd_vp_inline.[[#]], i32 0)
  call void %tmp()
  ret void
}

@bar2 = global ptr null, align 8
@_ZTIi = external constant ptr

define i32 @foo2(i32 %arg, ptr nocapture readnone %arg1) personality ptr @__gxx_personality_v0 {
bb:
  %tmp2 = load ptr, ptr @bar2, align 8
  invoke void %tmp2()
          to label %bb10 unwind label %bb2
; GEN: [[ICALL_TARGET2:%[0-9]+]] = ptrtoint ptr %tmp2 to i64
; GEN-NEXT: call void @llvm.instrprof.value.profile(ptr @__profn_foo2, i64 [[FOO2_HASH:[0-9]+]], i64 [[ICALL_TARGET2]], i32 0, i32 0)

bb2:                                              ; preds = %bb
  %tmp3 = landingpad { ptr, i32 }
          catch ptr @_ZTIi
  %tmp4 = extractvalue { ptr, i32 } %tmp3, 1
  %tmp5 = tail call i32 @llvm.eh.typeid.for(ptr @_ZTIi)
  %tmp6 = icmp eq i32 %tmp4, %tmp5
  br i1 %tmp6, label %bb7, label %bb11

bb7:                                              ; preds = %bb2
  %tmp8 = extractvalue { ptr, i32 } %tmp3, 0
  %tmp9 = tail call ptr @__cxa_begin_catch(ptr %tmp8)
  tail call void @__cxa_end_catch()
  br label %bb10

bb10:                                             ; preds = %bb7, %bb
  ret i32 0

bb11:                                             ; preds = %bb2
  resume { ptr, i32 } %tmp3
}

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nounwind readnone
declare i32 @llvm.eh.typeid.for(ptr) #0

declare ptr @__cxa_begin_catch(ptr)

declare void @__cxa_end_catch()