derek.holloway
7502bf64a4
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158 lines
6.5 KiB
LLVM
158 lines
6.5 KiB
LLVM
; RUN: split-file %s %t
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; RUN: cat %t/main.ll %t/probable-or.prof > %t/probable-or.ll
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; RUN: cat %t/main.ll %t/probable-and.prof > %t/probable-and.ll
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; RUN: opt -passes='loop-mssa(simple-loop-unswitch)' -S %t/probable-or.ll -o - | FileCheck %t/probable-or.prof
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; RUN: opt -passes='loop-mssa(simple-loop-unswitch)' -S %t/probable-and.ll -o - | FileCheck %t/probable-and.prof
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;
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; RUN: opt -passes='module(print<block-freq>),function(loop-mssa(simple-loop-unswitch)),module(print<block-freq>)' \
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; RUN: %t/probable-or.ll -disable-output -simple-loop-unswitch-estimate-profile=0 2>&1 | FileCheck %t/probable-or.prof --check-prefixes=PROFILE-COM,PROFILE-REF
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; RUN: opt -passes='module(print<block-freq>),function(loop-mssa(simple-loop-unswitch)),module(print<block-freq>)' \
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; RUN: %t/probable-or.ll -disable-output -simple-loop-unswitch-estimate-profile=1 2>&1 | FileCheck %t/probable-or.prof --check-prefixes=PROFILE-COM,PROFILE-CHK
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; RUN: opt -passes='module(print<block-freq>),function(loop-mssa(simple-loop-unswitch)),module(print<block-freq>)' \
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; RUN: %t/probable-and.ll -disable-output -simple-loop-unswitch-estimate-profile=0 2>&1 | FileCheck %t/probable-and.prof --check-prefixes=PROFILE-COM,PROFILE-REF
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; RUN: opt -passes='module(print<block-freq>),function(loop-mssa(simple-loop-unswitch)),module(print<block-freq>)' \
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; RUN: %t/probable-and.ll -disable-output -simple-loop-unswitch-estimate-profile=1 2>&1 | FileCheck %t/probable-and.prof --check-prefixes=PROFILE-COM,PROFILE-CHK
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;--- main.ll
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declare void @some_func() noreturn
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define i32 @or(i1 %cond1, i32 %var1) !prof !0 {
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entry:
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br label %loop_begin
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loop_begin:
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%var3 = phi i32 [%var1, %entry], [%var2, %do_something]
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%cond2 = icmp eq i32 %var3, 10
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%cond.or = or i1 %cond1, %cond2
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br i1 %cond.or, label %loop_exit, label %do_something, !prof !1
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do_something:
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%var2 = add i32 %var3, 1
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call void @some_func() noreturn nounwind
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br label %loop_begin
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loop_exit:
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ret i32 0
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}
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define i32 @and(i1 %cond1, i32 %var1) !prof !0 {
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entry:
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br label %loop_begin
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loop_begin:
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%var3 = phi i32 [%var1, %entry], [%var2, %do_something]
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%cond2 = icmp eq i32 %var3, 10
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%cond.and = and i1 %cond1, %cond2
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br i1 %cond.and, label %do_something, label %loop_exit, !prof !1
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do_something:
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%var2 = add i32 %var3, 1
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call void @some_func() noreturn nounwind
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br label %loop_begin
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loop_exit:
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ret i32 0
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}
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;--- probable-or.prof
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!0 = !{!"function_entry_count", i32 10}
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!1 = !{!"branch_weights", i32 1, i32 1000}
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; CHECK-LABEL: @or
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; CHECK-LABEL: entry:
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; CHECK-NEXT: %cond1.fr = freeze i1 %cond1
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; CHECK-NEXT: br i1 %cond1.fr, label %loop_exit.split, label %entry.split, !prof !1
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; CHECK-LABEL: @and
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; CHECK-LABEL: entry:
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; CHECK-NEXT: %cond1.fr = freeze i1 %cond1
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; CHECK-NEXT: br i1 %cond1.fr, label %entry.split, label %loop_exit.split, !prof !2
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; CHECK: !1 = !{!"branch_weights", i32 1, i32 1000}
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; CHECK: !2 = !{!"unknown", !"simple-loop-unswitch"}
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; PROFILE-COM: Printing analysis results of BFI for function 'or':
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; PROFILE-COM: block-frequency-info: or
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; PROFILE-COM: - entry: {{.*}} count = 10
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; PROFILE-COM: - loop_begin: {{.*}} count = 10010
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; PROFILE-COM: - do_something: {{.*}} count = 10000
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; PROFILE-COM: - loop_exit: {{.*}} count = 10
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; PROFILE-COM: Printing analysis results of BFI for function 'and':
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; PROFILE-COM: block-frequency-info: and
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; PROFILE-COM: - entry: {{.*}} count = 10
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; PROFILE-COM: - loop_begin: {{.*}} count = 10
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; PROFILE-COM: - do_something: {{.*}} count = 0
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; PROFILE-COM: - loop_exit: {{.*}} count = 10
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; PROFILE-COM: Printing analysis results of BFI for function 'or':
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; PROFILE-COM: block-frequency-info: or
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; PROFILE-COM: - entry: {{.*}} count = 10
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; PROFILE-REF: - entry.split: {{.*}} count = 5
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; PROFILE-CHK: - entry.split: {{.*}} count = 10
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; PROFILE-REF: - loop_begin: {{.*}} count = 5005
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; PROFILE-CHK: - loop_begin: {{.*}} count = 10000
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; PROFILE-REF: - do_something: {{.*}} count = 5000
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; PROFILE-CHK: - do_something: {{.*}} count = 9990
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; PROFILE-REF: - loop_exit: {{.*}} count = 5
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; PROFILE-CHK: - loop_exit: {{.*}} count = 10
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; PROFILE-COM: - loop_exit.split: {{.*}} count = 10
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; PROFILE-COM: Printing analysis results of BFI for function 'and':
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; PROFILE-COM: block-frequency-info: and
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; PROFILE-COM: - entry: {{.*}} count = 10
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; PROFILE-COM: - entry.split: {{.*}} count = 5
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; PROFILE-COM: - loop_begin: {{.*}} count = 5
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; PROFILE-COM: - do_something: {{.*}} count = 0
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; PROFILE-COM: - loop_exit: {{.*}} count = 5
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; PROFILE-COM: - loop_exit.split: {{.*}} count = 10
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;--- probable-and.prof
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!0 = !{!"function_entry_count", i32 10}
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!1 = !{!"branch_weights", i32 1000, i32 1}
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; CHECK-LABEL: @or
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; CHECK-LABEL: entry:
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; CHECK-NEXT: %cond1.fr = freeze i1 %cond1
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; CHECK-NEXT: br i1 %cond1.fr, label %loop_exit.split, label %entry.split, !prof !1
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; CHECK-LABEL: @and
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; CHECK-LABEL: entry:
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; CHECK-NEXT: %cond1.fr = freeze i1 %cond1
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; CHECK-NEXT: br i1 %cond1.fr, label %entry.split, label %loop_exit.split, !prof !2
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; CHECK: !1 = !{!"unknown", !"simple-loop-unswitch"}
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; CHECK: !2 = !{!"branch_weights", i32 1000, i32 1}
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; PROFILE-COM: Printing analysis results of BFI for function 'or':
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; PROFILE-COM: block-frequency-info: or
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; PROFILE-COM: - entry: {{.*}}, count = 10
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; PROFILE-COM: - loop_begin: {{.*}}, count = 10
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; PROFILE-COM: - do_something: {{.*}}, count = 0
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; PROFILE-COM: - loop_exit: {{.*}}, count = 10
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; PROFILE-COM: Printing analysis results of BFI for function 'and':
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; PROFILE-COM: block-frequency-info: and
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; PROFILE-COM: - entry: {{.*}} count = 10
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; PROFILE-COM: - loop_begin: {{.*}} count = 10010
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; PROFILE-COM: - do_something: {{.*}} count = 10000
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; PROFILE-COM: - loop_exit: {{.*}} count = 10
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; PROFILE-COM: Printing analysis results of BFI for function 'or':
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; PROFILE-COM: block-frequency-info: or
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; PROFILE-COM: - entry: {{.*}} count = 10
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; PROFILE-COM: - entry.split: {{.*}} count = 5
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; PROFILE-COM: - loop_begin: {{.*}} count = 5
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; PROFILE-COM: - do_something: {{.*}} count = 0
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; PROFILE-COM: - loop_exit: {{.*}} count = 5
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; PROFILE-COM: - loop_exit.split: {{.*}} count = 10
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; PROFILE-COM: Printing analysis results of BFI for function 'and':
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; PROFILE-COM: block-frequency-info: and
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; PROFILE-COM: - entry: {{.*}} count = 10
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; PROFILE-REF: - entry.split: {{.*}} count = 5
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; PROFILE-CHK: - entry.split: {{.*}} count = 10
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; PROFILE-REF: - loop_begin: {{.*}} count = 5005
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; PROFILE-CHK: - loop_begin: {{.*}} count = 10000
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; PROFILE-REF: - do_something: {{.*}} count = 5000
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; PROFILE-CHK: - do_something: {{.*}} count = 9990
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; PROFILE-REF: - loop_exit: {{.*}} count = 5
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; PROFILE-CHK: - loop_exit: {{.*}} count = 10
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; PROFILE-COM: - loop_exit.split: {{.*}} count = 10
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