42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
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; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
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; RUN: llvm-profdata merge %S/Inputs/branch2.proftext -o %t.profdata
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; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
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; RUN: opt < %s -passes=pgo-instr-use -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 = constant i64 {{[0-9]+}}, comdat
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; GEN: @__profn_test_br_2 = private constant [9 x i8] c"test_br_2"
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define i32 @test_br_2(i32 %i) {
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entry:
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; GEN: entry:
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; GEN-NOT: llvm.instrprof.increment
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%cmp = icmp sgt i32 %i, 0
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br i1 %cmp, label %if.then, label %if.else
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; USE: br i1 %cmp, label %if.then, label %if.else
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; USE-SAME: !prof ![[BW_ENTRY:[0-9]+]]
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; USE: ![[BW_ENTRY]] = !{!"branch_weights", i32 1, i32 1}
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if.then:
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; GEN: if.then:
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; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @__profn_test_br_2, i32 0, i32 0), i64 29667547796, i32 2, i32 0)
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%add = add nsw i32 %i, 2
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br label %if.end
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if.else:
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; GEN: if.else:
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; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @__profn_test_br_2, i32 0, i32 0), i64 29667547796, i32 2, i32 1)
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%sub = sub nsw i32 %i, 2
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br label %if.end
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if.end:
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; GEN: if.end:
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; GEN-NOT: llvm.instrprof.increment
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%retv = phi i32 [ %add, %if.then ], [ %sub, %if.else ]
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ret i32 %retv
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; GEN: ret
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}
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