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https://github.com/c64scene-ar/llvm-6502.git
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e6d5d39c07
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48538 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
1.1 KiB
LLVM
29 lines
1.1 KiB
LLVM
; RUN: llvm-as < %s | opt -loop-reduce -disable-output
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; LSR should not crash on this.
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define fastcc void @loadloop() {
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entry:
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switch i8 0, label %shortcirc_next [
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i8 32, label %loopexit.2
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i8 59, label %loopexit.2
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]
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shortcirc_next: ; preds = %no_exit.2, %entry
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%indvar37 = phi i32 [ 0, %entry ], [ %indvar.next38, %no_exit.2 ] ; <i32> [#uses=3]
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%gep.upgrd.1 = zext i32 %indvar37 to i64 ; <i64> [#uses=1]
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%wp.2.4 = getelementptr i8* null, i64 %gep.upgrd.1 ; <i8*> [#uses=1]
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br i1 false, label %loopexit.2, label %no_exit.2
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no_exit.2: ; preds = %shortcirc_next
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%wp.2.4.rec = bitcast i32 %indvar37 to i32 ; <i32> [#uses=1]
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%inc.1.rec = add i32 %wp.2.4.rec, 1 ; <i32> [#uses=1]
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%inc.1 = getelementptr i8* null, i32 %inc.1.rec ; <i8*> [#uses=2]
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%indvar.next38 = add i32 %indvar37, 1 ; <i32> [#uses=1]
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switch i8 0, label %shortcirc_next [
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i8 32, label %loopexit.2
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i8 59, label %loopexit.2
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]
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loopexit.2: ; preds = %no_exit.2, %no_exit.2, %shortcirc_next, %entry, %entry
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%wp.2.7 = phi i8* [ null, %entry ], [ null, %entry ], [ %wp.2.4, %shortcirc_next ], [ %inc.1, %no_exit.2 ], [ %inc.1, %no_exit.2 ] ; <i8*> [#uses=0]
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ret void
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}
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