mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-17 18:31:04 +00:00
1ef70ff39b
Now that `Metadata` is typeless, reflect that in the assembly. These
are the matching assembly changes for the metadata/value split in
r223802.
- Only use the `metadata` type when referencing metadata from a call
intrinsic -- i.e., only when it's used as a `Value`.
- Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
when referencing it from call intrinsics.
So, assembly like this:
define @foo(i32 %v) {
call void @llvm.foo(metadata !{i32 %v}, metadata !0)
call void @llvm.foo(metadata !{i32 7}, metadata !0)
call void @llvm.foo(metadata !1, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{metadata !3}, metadata !0)
ret void, !bar !2
}
!0 = metadata !{metadata !2}
!1 = metadata !{i32* @global}
!2 = metadata !{metadata !3}
!3 = metadata !{}
turns into this:
define @foo(i32 %v) {
call void @llvm.foo(metadata i32 %v, metadata !0)
call void @llvm.foo(metadata i32 7, metadata !0)
call void @llvm.foo(metadata i32* @global, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{!3}, metadata !0)
ret void, !bar !2
}
!0 = !{!2}
!1 = !{i32* @global}
!2 = !{!3}
!3 = !{}
I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines). I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.
This is part of PR21532.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
142 lines
4.0 KiB
LLVM
142 lines
4.0 KiB
LLVM
; RUN: opt < %s -analyze -block-freq | FileCheck %s
|
|
|
|
define i32 @test1(i32 %i, i32* %a) {
|
|
; CHECK-LABEL: Printing analysis {{.*}} for function 'test1':
|
|
; CHECK-NEXT: block-frequency-info: test1
|
|
; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
|
|
entry:
|
|
br label %body
|
|
|
|
; Loop backedges are weighted and thus their bodies have a greater frequency.
|
|
; CHECK-NEXT: body: float = 32.0,
|
|
body:
|
|
%iv = phi i32 [ 0, %entry ], [ %next, %body ]
|
|
%base = phi i32 [ 0, %entry ], [ %sum, %body ]
|
|
%arrayidx = getelementptr inbounds i32* %a, i32 %iv
|
|
%0 = load i32* %arrayidx
|
|
%sum = add nsw i32 %0, %base
|
|
%next = add i32 %iv, 1
|
|
%exitcond = icmp eq i32 %next, %i
|
|
br i1 %exitcond, label %exit, label %body
|
|
|
|
; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
|
|
exit:
|
|
ret i32 %sum
|
|
}
|
|
|
|
define i32 @test2(i32 %i, i32 %a, i32 %b) {
|
|
; CHECK-LABEL: Printing analysis {{.*}} for function 'test2':
|
|
; CHECK-NEXT: block-frequency-info: test2
|
|
; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
|
|
entry:
|
|
%cond = icmp ult i32 %i, 42
|
|
br i1 %cond, label %then, label %else, !prof !0
|
|
|
|
; The 'then' branch is predicted more likely via branch weight metadata.
|
|
; CHECK-NEXT: then: float = 0.9411{{[0-9]*}},
|
|
then:
|
|
br label %exit
|
|
|
|
; CHECK-NEXT: else: float = 0.05882{{[0-9]*}},
|
|
else:
|
|
br label %exit
|
|
|
|
; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
|
|
exit:
|
|
%result = phi i32 [ %a, %then ], [ %b, %else ]
|
|
ret i32 %result
|
|
}
|
|
|
|
!0 = !{!"branch_weights", i32 64, i32 4}
|
|
|
|
define i32 @test3(i32 %i, i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) {
|
|
; CHECK-LABEL: Printing analysis {{.*}} for function 'test3':
|
|
; CHECK-NEXT: block-frequency-info: test3
|
|
; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
|
|
entry:
|
|
switch i32 %i, label %case_a [ i32 1, label %case_b
|
|
i32 2, label %case_c
|
|
i32 3, label %case_d
|
|
i32 4, label %case_e ], !prof !1
|
|
|
|
; CHECK-NEXT: case_a: float = 0.05,
|
|
case_a:
|
|
br label %exit
|
|
|
|
; CHECK-NEXT: case_b: float = 0.05,
|
|
case_b:
|
|
br label %exit
|
|
|
|
; The 'case_c' branch is predicted more likely via branch weight metadata.
|
|
; CHECK-NEXT: case_c: float = 0.8,
|
|
case_c:
|
|
br label %exit
|
|
|
|
; CHECK-NEXT: case_d: float = 0.05,
|
|
case_d:
|
|
br label %exit
|
|
|
|
; CHECK-NEXT: case_e: float = 0.05,
|
|
case_e:
|
|
br label %exit
|
|
|
|
; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
|
|
exit:
|
|
%result = phi i32 [ %a, %case_a ],
|
|
[ %b, %case_b ],
|
|
[ %c, %case_c ],
|
|
[ %d, %case_d ],
|
|
[ %e, %case_e ]
|
|
ret i32 %result
|
|
}
|
|
|
|
!1 = !{!"branch_weights", i32 4, i32 4, i32 64, i32 4, i32 4}
|
|
|
|
define void @nested_loops(i32 %a) {
|
|
; CHECK-LABEL: Printing analysis {{.*}} for function 'nested_loops':
|
|
; CHECK-NEXT: block-frequency-info: nested_loops
|
|
; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
|
|
entry:
|
|
br label %for.cond1.preheader
|
|
|
|
; CHECK-NEXT: for.cond1.preheader: float = 4001.0,
|
|
for.cond1.preheader:
|
|
%x.024 = phi i32 [ 0, %entry ], [ %inc12, %for.inc11 ]
|
|
br label %for.cond4.preheader
|
|
|
|
; CHECK-NEXT: for.cond4.preheader: float = 16008001.0,
|
|
for.cond4.preheader:
|
|
%y.023 = phi i32 [ 0, %for.cond1.preheader ], [ %inc9, %for.inc8 ]
|
|
%add = add i32 %y.023, %x.024
|
|
br label %for.body6
|
|
|
|
; CHECK-NEXT: for.body6: float = 64048012001.0,
|
|
for.body6:
|
|
%z.022 = phi i32 [ 0, %for.cond4.preheader ], [ %inc, %for.body6 ]
|
|
%add7 = add i32 %add, %z.022
|
|
tail call void @g(i32 %add7)
|
|
%inc = add i32 %z.022, 1
|
|
%cmp5 = icmp ugt i32 %inc, %a
|
|
br i1 %cmp5, label %for.inc8, label %for.body6, !prof !2
|
|
|
|
; CHECK-NEXT: for.inc8: float = 16008001.0,
|
|
for.inc8:
|
|
%inc9 = add i32 %y.023, 1
|
|
%cmp2 = icmp ugt i32 %inc9, %a
|
|
br i1 %cmp2, label %for.inc11, label %for.cond4.preheader, !prof !2
|
|
|
|
; CHECK-NEXT: for.inc11: float = 4001.0,
|
|
for.inc11:
|
|
%inc12 = add i32 %x.024, 1
|
|
%cmp = icmp ugt i32 %inc12, %a
|
|
br i1 %cmp, label %for.end13, label %for.cond1.preheader, !prof !2
|
|
|
|
; CHECK-NEXT: for.end13: float = 1.0, int = [[ENTRY]]
|
|
for.end13:
|
|
ret void
|
|
}
|
|
|
|
declare void @g(i32)
|
|
|
|
!2 = !{!"branch_weights", i32 1, i32 4000}
|