forked from OSchip/llvm-project
50 lines
2.0 KiB
LLVM
50 lines
2.0 KiB
LLVM
; RUN: llc < %s
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; July 6, 2002 -- LLC Regression test
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; This test case checks if the integer CC register %xcc (or %ccr)
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; is correctly spilled. The code fragment came from function
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; MakeGraph in Olden-mst.
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; The original code made all comparisons with 0, so that the %xcc
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; register is not needed for the branch in the first basic block.
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; Replace 0 with 1 in the first comparson so that the
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; branch-on-register instruction cannot be used directly, i.e.,
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; the %xcc register is needed for the first branch.
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;
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%Graph = type %struct.graph_st*
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%Hash = type %struct.hash*
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%HashEntry = type %struct.hash_entry*
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%Vertex = type %struct.vert_st*
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%struct.graph_st = type { [1 x %Vertex] }
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%struct.hash = type { %HashEntry*, i32 (i32)*, i32 }
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%struct.hash_entry = type { i32, i8*, %HashEntry }
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%struct.vert_st = type { i32, %Vertex, %Hash }
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@HashRange = external global i32 ; <i32*> [#uses=0]
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@.LC0 = internal global [13 x i8] c"Make phase 2\00" ; <[13 x i8]*> [#uses=0]
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@.LC1 = internal global [13 x i8] c"Make phase 3\00" ; <[13 x i8]*> [#uses=0]
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@.LC2 = internal global [13 x i8] c"Make phase 4\00" ; <[13 x i8]*> [#uses=0]
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@.LC3 = internal global [15 x i8] c"Make returning\00" ; <[15 x i8]*> [#uses=0]
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define %Graph @MakeGraph(i32 %numvert, i32 %numproc) {
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bb1:
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%reg111 = add i32 %numproc, -1 ; <i32> [#uses=2]
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%cond275 = icmp slt i32 %reg111, 1 ; <i1> [#uses=1]
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%cond276 = icmp sle i32 %reg111, 0 ; <i1> [#uses=1]
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%cond277 = icmp sge i32 %numvert, 0 ; <i1> [#uses=1]
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%reg162 = add i32 %numvert, 3 ; <i32> [#uses=0]
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br i1 %cond275, label %bb7, label %bb4
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bb4: ; preds = %bb1
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br i1 %cond276, label %bb7, label %bb5
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bb5: ; preds = %bb4
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br i1 %cond277, label %bb7, label %bb6
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bb6: ; preds = %bb5
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ret %Graph null
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bb7: ; preds = %bb5, %bb4, %bb1
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ret %Graph null
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}
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