forked from OSchip/llvm-project
34 lines
954 B
LLVM
34 lines
954 B
LLVM
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; RUN: opt -loop-reduce -verify < %s
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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--linux-gnu"
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define void @unbounded() {
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block_A:
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%0 = sext i32 undef to i64
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br i1 undef, label %block_F, label %block_G
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block_C: ; preds = %block_F
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br i1 undef, label %block_D, label %block_E
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block_D: ; preds = %block_D, %block_C
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br i1 undef, label %block_E, label %block_D
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block_E: ; preds = %block_D, %block_C
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%iv2 = phi i64 [ %4, %block_D ], [ %4, %block_C ]
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%1 = add nsw i32 %iv1, 1
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%2 = icmp eq i32 %1, undef
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br i1 %2, label %block_G, label %block_F
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block_F: ; preds = %block_E, %block_A
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%iv3 = phi i64 [ %iv2, %block_E ], [ %0, %block_A ]
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%iv1 = phi i32 [ %1, %block_E ], [ undef, %block_A ]
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%3 = add nsw i64 %iv3, 2
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%4 = add nsw i64 %iv3, 1
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br label %block_C
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block_G: ; preds = %block_E, %block_A
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ret void
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}
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