mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
9a11d668f9
This reverts commit r206707, reapplying r206704. The preceding commit to CalcSpillWeights should have sorted out the failing buildbots. <rdar://problem/14292693> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206766 91177308-0d34-0410-b5e6-96231b3b80d8
166 lines
4.6 KiB
LLVM
166 lines
4.6 KiB
LLVM
; RUN: opt < %s -analyze -block-freq | FileCheck %s
|
|
|
|
; CHECK-LABEL: Printing analysis {{.*}} for function 'double_exit':
|
|
; CHECK-NEXT: block-frequency-info: double_exit
|
|
define i32 @double_exit(i32 %N) {
|
|
; Mass = 1
|
|
; Frequency = 1
|
|
; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
|
|
entry:
|
|
br label %outer
|
|
|
|
; Mass = 1
|
|
; Backedge mass = 1/3, exit mass = 2/3
|
|
; Loop scale = 3/2
|
|
; Psuedo-edges = exit
|
|
; Psuedo-mass = 1
|
|
; Frequency = 1*3/2*1 = 3/2
|
|
; CHECK-NEXT: outer: float = 1.5,
|
|
outer:
|
|
%I.0 = phi i32 [ 0, %entry ], [ %inc6, %outer.inc ]
|
|
%Return.0 = phi i32 [ 0, %entry ], [ %Return.1, %outer.inc ]
|
|
%cmp = icmp slt i32 %I.0, %N
|
|
br i1 %cmp, label %inner, label %exit, !prof !2 ; 2:1
|
|
|
|
; Mass = 1
|
|
; Backedge mass = 3/5, exit mass = 2/5
|
|
; Loop scale = 5/2
|
|
; Pseudo-edges = outer.inc @ 1/5, exit @ 1/5
|
|
; Pseudo-mass = 2/3
|
|
; Frequency = 3/2*1*5/2*2/3 = 5/2
|
|
; CHECK-NEXT: inner: float = 2.5,
|
|
inner:
|
|
%Return.1 = phi i32 [ %Return.0, %outer ], [ %call4, %inner.inc ]
|
|
%J.0 = phi i32 [ %I.0, %outer ], [ %inc, %inner.inc ]
|
|
%cmp2 = icmp slt i32 %J.0, %N
|
|
br i1 %cmp2, label %inner.body, label %outer.inc, !prof !1 ; 4:1
|
|
|
|
; Mass = 4/5
|
|
; Frequency = 5/2*4/5 = 2
|
|
; CHECK-NEXT: inner.body: float = 2.0,
|
|
inner.body:
|
|
%call = call i32 @c2(i32 %I.0, i32 %J.0)
|
|
%tobool = icmp ne i32 %call, 0
|
|
br i1 %tobool, label %exit, label %inner.inc, !prof !0 ; 3:1
|
|
|
|
; Mass = 3/5
|
|
; Frequency = 5/2*3/5 = 3/2
|
|
; CHECK-NEXT: inner.inc: float = 1.5,
|
|
inner.inc:
|
|
%call4 = call i32 @logic2(i32 %Return.1, i32 %I.0, i32 %J.0)
|
|
%inc = add nsw i32 %J.0, 1
|
|
br label %inner
|
|
|
|
; Mass = 1/3
|
|
; Frequency = 3/2*1/3 = 1/2
|
|
; CHECK-NEXT: outer.inc: float = 0.5,
|
|
outer.inc:
|
|
%inc6 = add nsw i32 %I.0, 1
|
|
br label %outer
|
|
|
|
; Mass = 1
|
|
; Frequency = 1
|
|
; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
|
|
exit:
|
|
%Return.2 = phi i32 [ %Return.1, %inner.body ], [ %Return.0, %outer ]
|
|
ret i32 %Return.2
|
|
}
|
|
|
|
!0 = metadata !{metadata !"branch_weights", i32 1, i32 3}
|
|
!1 = metadata !{metadata !"branch_weights", i32 4, i32 1}
|
|
!2 = metadata !{metadata !"branch_weights", i32 2, i32 1}
|
|
|
|
declare i32 @c2(i32, i32)
|
|
declare i32 @logic2(i32, i32, i32)
|
|
|
|
; CHECK-LABEL: Printing analysis {{.*}} for function 'double_exit_in_loop':
|
|
; CHECK-NEXT: block-frequency-info: double_exit_in_loop
|
|
define i32 @double_exit_in_loop(i32 %N) {
|
|
; Mass = 1
|
|
; Frequency = 1
|
|
; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
|
|
entry:
|
|
br label %outer
|
|
|
|
; Mass = 1
|
|
; Backedge mass = 1/2, exit mass = 1/2
|
|
; Loop scale = 2
|
|
; Pseudo-edges = exit
|
|
; Psuedo-mass = 1
|
|
; Frequency = 1*2*1 = 2
|
|
; CHECK-NEXT: outer: float = 2.0,
|
|
outer:
|
|
%I.0 = phi i32 [ 0, %entry ], [ %inc12, %outer.inc ]
|
|
%Return.0 = phi i32 [ 0, %entry ], [ %Return.3, %outer.inc ]
|
|
%cmp = icmp slt i32 %I.0, %N
|
|
br i1 %cmp, label %middle, label %exit, !prof !3 ; 1:1
|
|
|
|
; Mass = 1
|
|
; Backedge mass = 1/3, exit mass = 2/3
|
|
; Loop scale = 3/2
|
|
; Psuedo-edges = outer.inc
|
|
; Psuedo-mass = 1/2
|
|
; Frequency = 2*1*3/2*1/2 = 3/2
|
|
; CHECK-NEXT: middle: float = 1.5,
|
|
middle:
|
|
%J.0 = phi i32 [ %I.0, %outer ], [ %inc9, %middle.inc ]
|
|
%Return.1 = phi i32 [ %Return.0, %outer ], [ %Return.2, %middle.inc ]
|
|
%cmp2 = icmp slt i32 %J.0, %N
|
|
br i1 %cmp2, label %inner, label %outer.inc, !prof !2 ; 2:1
|
|
|
|
; Mass = 1
|
|
; Backedge mass = 3/5, exit mass = 2/5
|
|
; Loop scale = 5/2
|
|
; Pseudo-edges = middle.inc @ 1/5, outer.inc @ 1/5
|
|
; Pseudo-mass = 2/3
|
|
; Frequency = 3/2*1*5/2*2/3 = 5/2
|
|
; CHECK-NEXT: inner: float = 2.5,
|
|
inner:
|
|
%Return.2 = phi i32 [ %Return.1, %middle ], [ %call7, %inner.inc ]
|
|
%K.0 = phi i32 [ %J.0, %middle ], [ %inc, %inner.inc ]
|
|
%cmp5 = icmp slt i32 %K.0, %N
|
|
br i1 %cmp5, label %inner.body, label %middle.inc, !prof !1 ; 4:1
|
|
|
|
; Mass = 4/5
|
|
; Frequency = 5/2*4/5 = 2
|
|
; CHECK-NEXT: inner.body: float = 2.0,
|
|
inner.body:
|
|
%call = call i32 @c3(i32 %I.0, i32 %J.0, i32 %K.0)
|
|
%tobool = icmp ne i32 %call, 0
|
|
br i1 %tobool, label %outer.inc, label %inner.inc, !prof !0 ; 3:1
|
|
|
|
; Mass = 3/5
|
|
; Frequency = 5/2*3/5 = 3/2
|
|
; CHECK-NEXT: inner.inc: float = 1.5,
|
|
inner.inc:
|
|
%call7 = call i32 @logic3(i32 %Return.2, i32 %I.0, i32 %J.0, i32 %K.0)
|
|
%inc = add nsw i32 %K.0, 1
|
|
br label %inner
|
|
|
|
; Mass = 1/3
|
|
; Frequency = 3/2*1/3 = 1/2
|
|
; CHECK-NEXT: middle.inc: float = 0.5,
|
|
middle.inc:
|
|
%inc9 = add nsw i32 %J.0, 1
|
|
br label %middle
|
|
|
|
; Mass = 1/2
|
|
; Frequency = 2*1/2 = 1
|
|
; CHECK-NEXT: outer.inc: float = 1.0,
|
|
outer.inc:
|
|
%Return.3 = phi i32 [ %Return.2, %inner.body ], [ %Return.1, %middle ]
|
|
%inc12 = add nsw i32 %I.0, 1
|
|
br label %outer
|
|
|
|
; Mass = 1
|
|
; Frequency = 1
|
|
; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
|
|
exit:
|
|
ret i32 %Return.0
|
|
}
|
|
|
|
!3 = metadata !{metadata !"branch_weights", i32 1, i32 1}
|
|
|
|
declare i32 @c3(i32, i32, i32)
|
|
declare i32 @logic3(i32, i32, i32, i32)
|