Blame - llvm/test/CodeGen/X86/2010-01-11-ExtraPHIArg.ll - toolchain/llvm-project

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Jakob Stoklund Olesen	d2a1bee	2010-01-11 21:02:33 +0000	[diff] [blame]	1	; RUN: llc -verify-machineinstrs < %s
				2	;
				3	; The lowering of a switch combined with constand folding would leave spurious extra arguments on a PHI instruction.
				4	;
				5	target triple = "x86_64-apple-darwin10"
				6
				7	define void @foo() {
				8	br label %cond_true813.i
				9
				10	cond_true813.i: ; preds = %0
				11	br i1 false, label %cond_true818.i, label %cond_next1146.i
				12
				13	cond_true818.i: ; preds = %cond_true813.i
				14	br i1 false, label %recog_memoized.exit52, label %cond_next1146.i
				15
				16	recog_memoized.exit52: ; preds = %cond_true818.i
				17	switch i32 0, label %bb886.i.preheader [
				18	i32 0, label %bb907.i
				19	i32 44, label %bb866.i
				20	i32 103, label %bb874.i
				21	i32 114, label %bb874.i
				22	]
				23
				24	bb857.i: ; preds = %bb886.i, %bb866.i
				25	%tmp862.i494.24 = phi i8* [ null, %bb866.i ], [ %tmp862.i494.26, %bb886.i ] ; <i8*> [#uses=1]
				26	switch i32 0, label %bb886.i.preheader [
				27	i32 0, label %bb907.i
				28	i32 44, label %bb866.i
				29	i32 103, label %bb874.i
				30	i32 114, label %bb874.i
				31	]
				32
				33	bb866.i.loopexit: ; preds = %bb874.i
				34	br label %bb866.i
				35
				36	bb866.i.loopexit31: ; preds = %cond_true903.i
				37	br label %bb866.i
				38
				39	bb866.i: ; preds = %bb866.i.loopexit31, %bb866.i.loopexit, %bb857.i, %recog_memoized.exit52
				40	br i1 false, label %bb907.i, label %bb857.i
				41
				42	bb874.i.preheader.loopexit: ; preds = %cond_true903.i, %cond_true903.i
				43	ret void
				44
				45	bb874.i: ; preds = %bb857.i, %bb857.i, %recog_memoized.exit52, %recog_memoized.exit52
				46	switch i32 0, label %bb886.i.preheader.loopexit [
				47	i32 0, label %bb907.i
				48	i32 44, label %bb866.i.loopexit
				49	i32 103, label %bb874.i.backedge
				50	i32 114, label %bb874.i.backedge
				51	]
				52
				53	bb874.i.backedge: ; preds = %bb874.i, %bb874.i
				54	ret void
				55
				56	bb886.i.preheader.loopexit: ; preds = %bb874.i
				57	ret void
				58
				59	bb886.i.preheader: ; preds = %bb857.i, %recog_memoized.exit52
				60	%tmp862.i494.26 = phi i8* [ undef, %recog_memoized.exit52 ], [ %tmp862.i494.24, %bb857.i ] ; <i8*> [#uses=1]
				61	br label %bb886.i
				62
				63	bb886.i: ; preds = %cond_true903.i, %bb886.i.preheader
				64	br i1 false, label %bb857.i, label %cond_true903.i
				65
				66	cond_true903.i: ; preds = %bb886.i
				67	switch i32 0, label %bb886.i [
				68	i32 0, label %bb907.i
				69	i32 44, label %bb866.i.loopexit31
				70	i32 103, label %bb874.i.preheader.loopexit
				71	i32 114, label %bb874.i.preheader.loopexit
				72	]
				73
				74	bb907.i: ; preds = %cond_true903.i, %bb874.i, %bb866.i, %bb857.i, %recog_memoized.exit52
				75	br i1 false, label %cond_next1146.i, label %cond_true910.i
				76
				77	cond_true910.i: ; preds = %bb907.i
				78	ret void
				79
				80	cond_next1146.i: ; preds = %bb907.i, %cond_true818.i, %cond_true813.i
				81	ret void
				82
				83	bb2060.i: ; No predecessors!
				84	br i1 false, label %cond_true2064.i, label %bb2067.i
				85
				86	cond_true2064.i: ; preds = %bb2060.i
				87	unreachable
				88
				89	bb2067.i: ; preds = %bb2060.i
				90	ret void
				91
				92	cond_next3473: ; No predecessors!
				93	ret void
				94
				95	cond_next3521: ; No predecessors!
				96	ret void
				97	}