152 lines
5.7 KiB
LLVM
152 lines
5.7 KiB
LLVM
; RUN: llc < %s -disable-fp-elim
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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-n8:16:32-S128"
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target triple = "i386-apple-macosx10.7"
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; This test case has a landing pad with two predecessors, and a variable that
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; is undef on the first edge while carrying the first function return value on
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; the second edge.
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;
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; Live range splitting tries to isolate the block containing the first function
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; call, and it is important that the last split point is after the function call
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; so the return value can spill.
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;
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; <rdar://problem/10664933>
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@Exception = external unnamed_addr constant { i8*, i8* }
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declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind
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define void @f(i32* nocapture %arg, i32* nocapture %arg1, i32* nocapture %arg2, i32* nocapture %arg3, i32 %arg4, i32 %arg5) optsize ssp {
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bb:
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br i1 undef, label %bb6, label %bb7
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bb6: ; preds = %bb
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%tmp = select i1 false, i32 0, i32 undef
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br label %bb7
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bb7: ; preds = %bb6, %bb
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%tmp8 = phi i32 [ %tmp, %bb6 ], [ 0, %bb ]
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%tmp9 = shl i32 %tmp8, 2
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%tmp10 = invoke noalias i8* @_Znam(i32 undef) optsize
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to label %bb11 unwind label %bb20
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bb11: ; preds = %bb7
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%tmp12 = ptrtoint i8* %tmp10 to i32
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%tmp13 = bitcast i8* %tmp10 to i32*
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%tmp14 = shl i32 %tmp8, 2
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%tmp15 = getelementptr i32* %tmp13, i32 undef
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%tmp16 = getelementptr i32* %tmp13, i32 undef
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%tmp17 = zext i32 %tmp9 to i64
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%tmp18 = add i64 %tmp17, -1
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%tmp19 = icmp ugt i64 %tmp18, 4294967295
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br i1 %tmp19, label %bb29, label %bb31
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bb20: ; preds = %bb43, %bb41, %bb29, %bb7
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%tmp21 = phi i32 [ undef, %bb7 ], [ %tmp12, %bb43 ], [ %tmp12, %bb29 ], [ %tmp12, %bb41 ]
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%tmp22 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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catch i8* bitcast ({ i8*, i8* }* @Exception to i8*)
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br i1 undef, label %bb23, label %bb69
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bb23: ; preds = %bb38, %bb20
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%tmp24 = phi i32 [ %tmp12, %bb38 ], [ %tmp21, %bb20 ]
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%tmp25 = icmp eq i32 %tmp24, 0
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br i1 %tmp25, label %bb28, label %bb26
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bb26: ; preds = %bb23
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%tmp27 = inttoptr i32 %tmp24 to i8*
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br label %bb28
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bb28: ; preds = %bb26, %bb23
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ret void
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bb29: ; preds = %bb11
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invoke void @OnOverFlow() optsize
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to label %bb30 unwind label %bb20
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bb30: ; preds = %bb29
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unreachable
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bb31: ; preds = %bb11
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%tmp32 = bitcast i32* %tmp15 to i8*
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%tmp33 = zext i32 %tmp8 to i64
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%tmp34 = add i64 %tmp33, -1
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%tmp35 = icmp ugt i64 %tmp34, 4294967295
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%tmp36 = icmp sgt i32 %tmp8, 0
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%tmp37 = add i32 %tmp9, -4
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br label %bb38
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bb38: ; preds = %bb67, %bb31
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%tmp39 = phi i32 [ %tmp68, %bb67 ], [ undef, %bb31 ]
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%tmp40 = icmp sgt i32 %tmp39, undef
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br i1 %tmp40, label %bb41, label %bb23
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bb41: ; preds = %bb38
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invoke void @Pjii(i32* %tmp16, i32 0, i32 %tmp8) optsize
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to label %bb42 unwind label %bb20
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bb42: ; preds = %bb41
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tail call void @llvm.memset.p0i8.i32(i8* %tmp32, i8 0, i32 %tmp9, i32 1, i1 false) nounwind
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br i1 %tmp35, label %bb43, label %bb45
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bb43: ; preds = %bb42
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invoke void @OnOverFlow() optsize
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to label %bb44 unwind label %bb20
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bb44: ; preds = %bb43
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unreachable
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bb45: ; preds = %bb57, %bb42
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%tmp46 = phi i32 [ %tmp58, %bb57 ], [ 255, %bb42 ]
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%tmp47 = icmp slt i32 undef, 0
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br i1 %tmp47, label %bb48, label %bb59
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bb48: ; preds = %bb45
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tail call void @llvm.memset.p0i8.i32(i8* %tmp32, i8 0, i32 %tmp9, i32 1, i1 false) nounwind
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br i1 %tmp36, label %bb49, label %bb57
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bb49: ; preds = %bb49, %bb48
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%tmp50 = phi i32 [ %tmp55, %bb49 ], [ 0, %bb48 ]
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%tmp51 = add i32 %tmp50, undef
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%tmp52 = add i32 %tmp50, undef
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%tmp53 = getelementptr i32* %tmp13, i32 %tmp52
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%tmp54 = load i32* %tmp53, align 4
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%tmp55 = add i32 %tmp50, 1
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%tmp56 = icmp eq i32 %tmp55, %tmp8
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br i1 %tmp56, label %bb57, label %bb49
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bb57: ; preds = %bb49, %bb48
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%tmp58 = add i32 %tmp46, -1
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br label %bb45
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bb59: ; preds = %bb45
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%tmp60 = ashr i32 %tmp46, 31
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tail call void @llvm.memset.p0i8.i32(i8* null, i8 0, i32 %tmp37, i32 1, i1 false) nounwind
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br i1 %tmp36, label %bb61, label %bb67
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bb61: ; preds = %bb61, %bb59
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%tmp62 = phi i32 [ %tmp65, %bb61 ], [ 0, %bb59 ]
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%tmp63 = add i32 %tmp62, %tmp14
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%tmp64 = getelementptr i32* %tmp13, i32 %tmp63
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store i32 0, i32* %tmp64, align 4
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%tmp65 = add i32 %tmp62, 1
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%tmp66 = icmp eq i32 %tmp65, %tmp8
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br i1 %tmp66, label %bb67, label %bb61
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bb67: ; preds = %bb61, %bb59
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%tmp68 = add i32 %tmp39, -1
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br label %bb38
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bb69: ; preds = %bb20
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resume { i8*, i32 } %tmp22
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}
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declare i32 @__gxx_personality_v0(...)
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declare noalias i8* @_Znam(i32) optsize
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declare void @Pjii(i32*, i32, i32) optsize
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declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
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declare void @OnOverFlow() noreturn optsize ssp align 2
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