123 lines
2.2 KiB
LLVM
123 lines
2.2 KiB
LLVM
; RUN: llc -mcpu=corei7 -mtriple=x86_64-linux < %s | FileCheck %s
|
|
; RUN: llc -mcpu=corei7 -mtriple=x86_64-linux -precise-rotation-cost < %s | FileCheck %s -check-prefix=CHECK-PROFILE
|
|
|
|
define void @foo() {
|
|
; Test a nested loop case when profile data is not available.
|
|
;
|
|
; CHECK-LABEL: foo:
|
|
; CHECK: callq b
|
|
; CHECK: callq c
|
|
; CHECK: callq d
|
|
; CHECK: callq e
|
|
; CHECK: callq f
|
|
; CHECK: callq g
|
|
; CHECK: callq h
|
|
|
|
entry:
|
|
br label %header
|
|
|
|
header:
|
|
call void @b()
|
|
%call = call zeroext i1 @a()
|
|
br i1 %call, label %if.then, label %if.else, !prof !2
|
|
|
|
if.then:
|
|
br label %header2
|
|
|
|
header2:
|
|
call void @c()
|
|
%call1 = call zeroext i1 @a()
|
|
br i1 %call1, label %if.then2, label %if.else2, !prof !2
|
|
|
|
if.then2:
|
|
call void @d()
|
|
br label %if.end2
|
|
|
|
if.else2:
|
|
call void @e()
|
|
br label %if.end2
|
|
|
|
if.end2:
|
|
call void @f()
|
|
%call2 = call zeroext i1 @a()
|
|
br i1 %call2, label %header2, label %if.end
|
|
|
|
if.else:
|
|
call void @g()
|
|
br label %if.end
|
|
|
|
if.end:
|
|
call void @h()
|
|
%call3 = call zeroext i1 @a()
|
|
br i1 %call3, label %header, label %end
|
|
|
|
end:
|
|
ret void
|
|
}
|
|
|
|
define void @bar() !prof !1 {
|
|
; Test a nested loop case when profile data is available.
|
|
;
|
|
; CHECK-PROFILE-LABEL: bar:
|
|
; CHECK-PROFILE: callq e
|
|
; CHECK-PROFILE: callq f
|
|
; CHECK-PROFILE: callq c
|
|
; CHECK-PROFILE: callq d
|
|
; CHECK-PROFILE: callq h
|
|
; CHECK-PROFILE: callq b
|
|
; CHECK-PROFILE: callq g
|
|
|
|
entry:
|
|
br label %header
|
|
|
|
header:
|
|
call void @b()
|
|
%call = call zeroext i1 @a()
|
|
br i1 %call, label %if.then, label %if.else, !prof !2
|
|
|
|
if.then:
|
|
br label %header2
|
|
|
|
header2:
|
|
call void @c()
|
|
%call1 = call zeroext i1 @a()
|
|
br i1 %call1, label %if.then2, label %if.else2, !prof !2
|
|
|
|
if.then2:
|
|
call void @d()
|
|
br label %if.end2
|
|
|
|
if.else2:
|
|
call void @e()
|
|
br label %if.end2
|
|
|
|
if.end2:
|
|
call void @f()
|
|
%call2 = call zeroext i1 @a()
|
|
br i1 %call2, label %header2, label %if.end
|
|
|
|
if.else:
|
|
call void @g()
|
|
br label %if.end
|
|
|
|
if.end:
|
|
call void @h()
|
|
%call3 = call zeroext i1 @a()
|
|
br i1 %call3, label %header, label %end
|
|
|
|
end:
|
|
ret void
|
|
}
|
|
|
|
declare zeroext i1 @a()
|
|
declare void @b()
|
|
declare void @c()
|
|
declare void @d()
|
|
declare void @e()
|
|
declare void @f()
|
|
declare void @g()
|
|
declare void @h()
|
|
|
|
!1 = !{!"function_entry_count", i64 1}
|
|
!2 = !{!"branch_weights", i32 16, i32 16}
|