35 lines
761 B
LLVM
35 lines
761 B
LLVM
; RUN: opt -passes='loop(unswitch),verify<loops>' -S < %s | FileCheck %s
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; RUN: opt -verify-memoryssa -passes='loop-mssa(unswitch),verify<loops>' -S < %s | FileCheck %s
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declare void @incf()
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declare void @decf()
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define i32 @test2(i32 %c) {
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; CHECK-LABEL: @test2(
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br label %loop_begin
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; CHECK: !prof ![[MD0:[0-9]+]]
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; CHECK: loop_begin:
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; CHECK: !prof ![[MD1:[0-9]+]]
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loop_begin:
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switch i32 %c, label %default [
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i32 1, label %inc
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i32 2, label %dec
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], !prof !{!"branch_weights", i32 99, i32 1, i32 2}
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inc:
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call void @incf()
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br label %loop_begin
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dec:
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call void @decf()
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br label %loop_begin
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default:
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ret i32 0
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}
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; CHECK: ![[MD0]] = !{!"branch_weights", i32 99, i32 1, i32 2}
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; CHECK: ![[MD1]] = !{!"branch_weights", i32 2, i32 1}
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