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; RUN: rm -rf %t && split-file %s %t
; RUN: llvm-profdata merge %t/default.proftext -o %t/default.profdata
; RUN: opt %t/main.ll -passes=pgo-instr-use -pgo-test-profile-file=%t/default.profdata -S | FileCheck %s
; RUN: llvm-profdata merge %t/loop_entries.proftext -o %t/loop_entries.profdata
; RUN: opt %t/main.ll -passes=pgo-instr-use -pgo-test-profile-file=%t/loop_entries.profdata -S | FileCheck %s
; RUN: llvm-profdata merge %t/function_entry.proftext -o %t/function_entry.profdata
; RUN: opt %t/main.ll -passes=pgo-instr-use -pgo-test-profile-file=%t/function_entry.profdata -S | FileCheck %s
;--- main.ll
define i32 @test_simple_for_with_bypass(i32 %n) {
; CHECK: define i32 @test_simple_for_with_bypass(i32 %n)
; CHECK-SAME: !prof ![[ENTRY_COUNT:[0-9]*]]
entry:
; CHECK: entry:
%mask = and i32 %n, 65535
%skip = icmp eq i32 %mask, 0
br i1 %skip, label %end, label %for.entry
; CHECK: br i1 %skip, label %end, label %for.entry
; CHECK-SAME: !prof ![[BW_FOR_BYPASS:[0-9]+]]
for.entry:
; CHECK: for.entry:
br label %for.cond
for.cond:
; CHECK: for.cond:
%i = phi i32 [ 0, %for.entry ], [ %inc1, %for.inc ]
%sum = phi i32 [ 1, %for.entry ], [ %inc, %for.inc ]
%cmp = icmp slt i32 %i, %n
br i1 %cmp, label %for.body, label %for.end, !prof !1
; CHECK: br i1 %cmp, label %for.body, label %for.end
; CHECK-SAME: !prof ![[BW_FOR_COND:[0-9]+]]
for.body:
; CHECK: for.body:
%inc = add nsw i32 %sum, 1
br label %for.inc
for.inc:
; CHECK: for.inc:
%inc1 = add nsw i32 %i, 1
br label %for.cond
for.end:
; CHECK: for.end:
br label %end
end:
; CHECK: end:
%final_sum = phi i32 [ %sum, %for.end ], [ 0, %entry ]
ret i32 %final_sum
}
!1 = !{!"branch_weights", i32 100000, i32 80}
; CHECK: ![[ENTRY_COUNT]] = !{!"function_entry_count", i64 12}
; CHECK: ![[BW_FOR_BYPASS]] = !{!"branch_weights", i32 4, i32 8}
; CHECK: ![[BW_FOR_COND]] = !{!"branch_weights", i32 123456, i32 8}
;--- default.proftext
# :ir is the flag to indicate this is IR level profile.
:ir
test_simple_for_with_bypass
# Func Hash:
536873292337293370
# Num Counters:
3
# Counter Values:
123456
12
8
;--- loop_entries.proftext
# :ir is the flag to indicate this is IR level profile.
:ir
# Always instrument the loop entry blocks
:instrument_loop_entries
test_simple_for_with_bypass
# Func Hash:
536873292337293370
# Num Counters:
3
# Counter Values:
123456
12
8
;--- function_entry.proftext
# :ir is the flag to indicate this is IR level profile.
:ir
# Always instrument the function entry block
:entry_first
test_simple_for_with_bypass
# Func Hash:
536873292337293370
# Num Counters:
3
# Counter Values:
12
123456
8
|
