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| ; RUN: opt -lowertypetests -lowertypetests-summary-action=import -lowertypetests-read-summary=%p/Inputs/cfi-direct-call.yaml %s -S | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux"
declare void @external_decl()
declare void @external_nodecl()
;declare void @internal_default_def()
declare hidden void @internal_hidden_def()
define i8 @local_a() {
call void @external_decl()
call void @external_nodecl()
call void @internal_default_def()
call void @internal_hidden_def()
call void @dsolocal_default_def()
call void @local_b()
ret i8 1
}
define dso_local void @dsolocal_default_def() {
ret void
}
define void @internal_default_def() {
ret void
}
define void @local_b() {
ret void
}
; CHECK: define i8 @local_a() {
; Even though a jump table entry is generated, the call goes directly
; to the function
; CHECK-NEXT: call void @external_decl()
; External call with no CFI decl - no action
; CHECK-NEXT: call void @external_nodecl()
; Internal function with default visibility gets routed through the jump table
; as it may be overriden at run time.
; CHECK-NEXT: call void @internal_default_def()
; Internal function with hidden visibility defined outside the module
; generates a jump table entry and is renamed to *.cfi: route direct call
; to the actual function, not jump table
; CHECK-NEXT: call void @internal_hidden_def.cfi()
; dso_local function with defailt visibility can be short-circuited
; CHECK-NEXT: call void @dsolocal_default_def.cfi()
; Local call - no action
; CHECK-NEXT: call void @local_b
; CHECK-NEXT: ret i8 1
; CHECK: declare hidden void @internal_hidden_def.cfi()
; CHECK: declare hidden void @external_decl.cfi_jt()
|