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2a99b482a6
jump threading can have bugs, who knew? ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61983 91177308-0d34-0410-b5e6-96231b3b80d8
50 lines
1.5 KiB
LLVM
50 lines
1.5 KiB
LLVM
; RUN: llvm-as < %s | opt -jump-threading | llvm-dis
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; PR3298
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin9.6"
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define i32 @func(i32 %p_79, i32 %p_80) nounwind {
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entry:
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br label %bb7
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bb1: ; preds = %bb2
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br label %bb2
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bb2: ; preds = %bb7, %bb1
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%l_82.0 = phi i8 [ 0, %bb1 ], [ %l_82.1, %bb7 ] ; <i8> [#uses=3]
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br i1 true, label %bb3, label %bb1
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bb3: ; preds = %bb2
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%0 = icmp eq i32 %p_80_addr.1, 0 ; <i1> [#uses=1]
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br i1 %0, label %bb7, label %bb6
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bb5: ; preds = %bb6
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%1 = icmp eq i8 %l_82.0, 0 ; <i1> [#uses=1]
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br i1 %1, label %bb1.i, label %bb.i
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bb.i: ; preds = %bb5
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br label %safe_div_func_char_s_s.exit
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bb1.i: ; preds = %bb5
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br label %safe_div_func_char_s_s.exit
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safe_div_func_char_s_s.exit: ; preds = %bb1.i, %bb.i
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br label %bb6
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bb6: ; preds = %safe_div_func_char_s_s.exit, %bb3
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%p_80_addr.0 = phi i32 [ %p_80_addr.1, %bb3 ], [ 1, %safe_div_func_char_s_s.exit ] ; <i32> [#uses=2]
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%2 = icmp eq i32 %p_80_addr.0, 0 ; <i1> [#uses=1]
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br i1 %2, label %bb7, label %bb5
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bb7: ; preds = %bb6, %bb3, %entry
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%l_82.1 = phi i8 [ 1, %entry ], [ %l_82.0, %bb3 ], [ %l_82.0, %bb6 ] ; <i8> [#uses=2]
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%p_80_addr.1 = phi i32 [ 0, %entry ], [ %p_80_addr.1, %bb3 ], [ %p_80_addr.0, %bb6 ] ; <i32> [#uses=4]
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%3 = icmp eq i32 %p_80_addr.1, 0 ; <i1> [#uses=1]
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br i1 %3, label %bb8, label %bb2
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bb8: ; preds = %bb7
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%4 = sext i8 %l_82.1 to i32 ; <i32> [#uses=0]
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ret i32 0
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}
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