35 lines
1.4 KiB
LLVM
35 lines
1.4 KiB
LLVM
; RUN: opt < %s -pgo-instr-gen -pgo-instr-select=true -S | FileCheck %s --check-prefix=GEN
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; RUN: opt < %s -passes=pgo-instr-gen -pgo-instr-select=true -S | FileCheck %s --check-prefix=GEN
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; RUN: opt < %s -pgo-instr-gen -pgo-instr-select=false -S | FileCheck %s --check-prefix=NOSELECT
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; RUN: opt < %s -passes=pgo-instr-gen -pgo-instr-select=false -S | FileCheck %s --check-prefix=NOSELECT
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; RUN: llvm-profdata merge %S/Inputs/select1.proftext -o %t.profdata
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; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -S | FileCheck %s --check-prefix=USE
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; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -S | FileCheck %s --check-prefix=USE
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define i32 @test_br_2(i32 %i) {
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entry:
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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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if.then:
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%add = add nsw i32 %i, 2
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;GEN: %[[STEP:[0-9]+]] = zext i1 %cmp to i64
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;GEN: call void @llvm.instrprof.increment.step({{.*}} i32 3, i32 2, i64 %[[STEP]])
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;NOSELECT-NOT: call void @llvm.instrprof.increment.step
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%s = select i1 %cmp, i32 %add, i32 0
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;USE: select i1 %cmp{{.*}}, !prof ![[BW_ENTRY:[0-9]+]]
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;USE: ![[BW_ENTRY]] = !{!"branch_weights", i32 1, i32 3}
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br label %if.end
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if.else:
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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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%retv = phi i32 [ %add, %if.then ], [ %sub, %if.else ]
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ret i32 %retv
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}
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