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349a850e5b
Summary: This patch adds support to preserve make.implicit metadata for unswitched conditions in loop pre-header. Reviewers: sanjoy, weimingz Subscribers: mcrosier, llvm-commits Differential Revision: http://reviews.llvm.org/D11769 llvm-svn: 244132
24 lines
567 B
LLVM
24 lines
567 B
LLVM
; RUN: opt < %s -loop-unswitch -S < %s 2>&1 | FileCheck %s
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; This test checks if unswitched condition preserve make.implicit metadata.
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define i32 @test(i1 %cond) {
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; CHECK: br i1 %cond, label %..split_crit_edge, label %.loop_exit.split_crit_edge, !make.implicit !0
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br label %loop_begin
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loop_begin:
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; CHECK: br i1 true, label %continue, label %loop_exit, !make.implicit !0
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br i1 %cond, label %continue, label %loop_exit, !make.implicit !0
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continue:
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call void @some_func()
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br label %loop_begin
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loop_exit:
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ret i32 0
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}
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declare void @some_func()
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!0 = !{}
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