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an undef value. This is only going to come up for bugpoint-reduced tests -- correct programs will not access memory at undefined addresses -- so it's not worth the effort of doing anything more aggressive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97745 91177308-0d34-0410-b5e6-96231b3b80d8
55 lines
2.3 KiB
LLVM
55 lines
2.3 KiB
LLVM
; RUN: llc < %s -march=arm
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define void @"java.lang.String::getChars"([84 x i8]* %method, i32 %base_pc, [788 x i8]* %thread) {
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%1 = sub i32 undef, 48 ; <i32> [#uses=1]
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br i1 undef, label %stack_overflow, label %no_overflow
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stack_overflow: ; preds = %0
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unreachable
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no_overflow: ; preds = %0
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%frame = inttoptr i32 %1 to [17 x i32]* ; <[17 x i32]*> [#uses=4]
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%2 = load i32* null ; <i32> [#uses=2]
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%3 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 14 ; <i32*> [#uses=1]
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%4 = load i32* %3 ; <i32> [#uses=2]
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%5 = load [8 x i8]** undef ; <[8 x i8]*> [#uses=2]
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br i1 undef, label %bci_13, label %bci_4
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bci_13: ; preds = %no_overflow
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br i1 undef, label %bci_30, label %bci_21
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bci_30: ; preds = %bci_13
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%6 = icmp sle i32 %2, %4 ; <i1> [#uses=1]
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br i1 %6, label %bci_46, label %bci_35
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bci_46: ; preds = %bci_30
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store [84 x i8]* %method, [84 x i8]** undef
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br i1 false, label %no_exception, label %exception
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exception: ; preds = %bci_46
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ret void
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no_exception: ; preds = %bci_46
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ret void
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bci_35: ; preds = %bci_30
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%7 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 15 ; <i32*> [#uses=1]
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store i32 %2, i32* %7
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%8 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 14 ; <i32*> [#uses=1]
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store i32 %4, i32* %8
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%9 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 13 ; <i32*> [#uses=1]
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%10 = bitcast i32* %9 to [8 x i8]** ; <[8 x i8]**> [#uses=1]
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store [8 x i8]* %5, [8 x i8]** %10
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call void inttoptr (i32 13839116 to void ([788 x i8]*, i32)*)([788 x i8]* %thread, i32 7)
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ret void
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bci_21: ; preds = %bci_13
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ret void
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bci_4: ; preds = %no_overflow
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store [8 x i8]* %5, [8 x i8]** undef
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store i32 undef, i32* undef
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call void inttoptr (i32 13839116 to void ([788 x i8]*, i32)*)([788 x i8]* %thread, i32 7)
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ret void
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}
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