derek.holloway
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52 lines
2.1 KiB
LLVM
52 lines
2.1 KiB
LLVM
; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry=false -S | FileCheck %s --check-prefixes=GEN,NOTENTRY
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; RUN: llvm-profdata merge %S/Inputs/loop1.proftext -o %t.profdata
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; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=false -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
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; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry=true -S | FileCheck %s --check-prefixes=GEN,ENTRY
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; RUN: llvm-profdata merge %S/Inputs/loop1_entry.proftext -o %t.profdata
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; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=true -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; GEN: $__llvm_profile_raw_version = comdat any
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; GEN: @__llvm_profile_raw_version = hidden constant i64 {{[0-9]+}}, comdat
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; GEN: @__profn_test_simple_for = private constant [15 x i8] c"test_simple_for"
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define i32 @test_simple_for(i32 %n) {
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entry:
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; GEN: entry:
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; NOTENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_simple_for, i64 {{[0-9]+}}, i32 2, i32 1)
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; ENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_simple_for, i64 {{[0-9]+}}, i32 2, i32 0)
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br label %for.cond
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for.cond:
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; GEN: for.cond:
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; GEN-NOT: call void @llvm.instrprof.increment
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%i = phi i32 [ 0, %entry ], [ %inc1, %for.inc ]
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%sum = phi i32 [ 1, %entry ], [ %inc, %for.inc ]
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%cmp = icmp slt i32 %i, %n
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br i1 %cmp, label %for.body, label %for.end
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; USE: br i1 %cmp, label %for.body, label %for.end
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; USE-SAME: !prof ![[BW_FOR_COND:[0-9]+]]
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; USE: ![[BW_FOR_COND]] = !{!"branch_weights", i32 96, i32 4}
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for.body:
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; GEN: for.body:
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; GEN-NOT: call void @llvm.instrprof.increment
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%inc = add nsw i32 %sum, 1
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br label %for.inc
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for.inc:
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; GEN: for.inc:
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; NOTENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_simple_for, i64 {{[0-9]+}}, i32 2, i32 0)
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; ENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_simple_for, i64 {{[0-9]+}}, i32 2, i32 1)
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%inc1 = add nsw i32 %i, 1
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br label %for.cond
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for.end:
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; GEN: for.end:
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; GEN-NOT: call void @llvm.instrprof.increment
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; GEN: ret i32
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ret i32 %sum
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}
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