1 ; RUN: llc < %s -mtriple=x86_64-unknown-linux | FileCheck %s 2 3 ; This test shouldn't require spills. 4 5 ; CHECK: pushq 6 ; CHECK-NOT: $rsp 7 ; CHECK: popq 8 9 %struct..0anon = type { i32 } 10 %struct.rtvec_def = type { i32, [1 x %struct..0anon] } 11 %struct.rtx_def = type { i16, i8, i8, [1 x %struct..0anon] } 12 @rtx_format = external global [116 x i8*] ; <[116 x i8*]*> [#uses=1] 13 @rtx_length = external global [117 x i32] ; <[117 x i32]*> [#uses=1] 14 15 declare %struct.rtx_def* @fixup_memory_subreg(%struct.rtx_def*, %struct.rtx_def*, i32) 16 17 define %struct.rtx_def* @walk_fixup_memory_subreg(%struct.rtx_def* %x, %struct.rtx_def* %insn) { 18 entry: 19 %tmp2 = icmp eq %struct.rtx_def* %x, null ; <i1> [#uses=1] 20 br i1 %tmp2, label %UnifiedReturnBlock, label %cond_next 21 22 cond_next: ; preds = %entry 23 %tmp6 = getelementptr %struct.rtx_def* %x, i32 0, i32 0 ; <i16*> [#uses=1] 24 %tmp7 = load i16* %tmp6 ; <i16> [#uses=2] 25 %tmp78 = zext i16 %tmp7 to i32 ; <i32> [#uses=2] 26 %tmp10 = icmp eq i16 %tmp7, 54 ; <i1> [#uses=1] 27 br i1 %tmp10, label %cond_true13, label %cond_next32 28 29 cond_true13: ; preds = %cond_next 30 %tmp15 = getelementptr %struct.rtx_def* %x, i32 0, i32 3 ; <[1 x %struct..0anon]*> [#uses=1] 31 %tmp1718 = bitcast [1 x %struct..0anon]* %tmp15 to %struct.rtx_def** ; <%struct.rtx_def**> [#uses=1] 32 %tmp19 = load %struct.rtx_def** %tmp1718 ; <%struct.rtx_def*> [#uses=1] 33 %tmp20 = getelementptr %struct.rtx_def* %tmp19, i32 0, i32 0 ; <i16*> [#uses=1] 34 %tmp21 = load i16* %tmp20 ; <i16> [#uses=1] 35 %tmp22 = icmp eq i16 %tmp21, 57 ; <i1> [#uses=1] 36 br i1 %tmp22, label %cond_true25, label %cond_next32 37 38 cond_true25: ; preds = %cond_true13 39 %tmp29 = tail call %struct.rtx_def* @fixup_memory_subreg( %struct.rtx_def* %x, %struct.rtx_def* %insn, i32 1 ) nounwind ; <%struct.rtx_def*> [#uses=1] 40 ret %struct.rtx_def* %tmp29 41 42 cond_next32: ; preds = %cond_true13, %cond_next 43 %tmp34 = getelementptr [116 x i8*]* @rtx_format, i32 0, i32 %tmp78 ; <i8**> [#uses=1] 44 %tmp35 = load i8** %tmp34, align 4 ; <i8*> [#uses=1] 45 %tmp37 = getelementptr [117 x i32]* @rtx_length, i32 0, i32 %tmp78 ; <i32*> [#uses=1] 46 %tmp38 = load i32* %tmp37, align 4 ; <i32> [#uses=1] 47 %i.011 = add i32 %tmp38, -1 ; <i32> [#uses=2] 48 %tmp12513 = icmp sgt i32 %i.011, -1 ; <i1> [#uses=1] 49 br i1 %tmp12513, label %bb, label %UnifiedReturnBlock 50 51 bb: ; preds = %bb123, %cond_next32 52 %indvar = phi i32 [ %indvar.next26, %bb123 ], [ 0, %cond_next32 ] ; <i32> [#uses=2] 53 %i.01.0 = sub i32 %i.011, %indvar ; <i32> [#uses=5] 54 %tmp42 = getelementptr i8* %tmp35, i32 %i.01.0 ; <i8*> [#uses=2] 55 %tmp43 = load i8* %tmp42 ; <i8> [#uses=1] 56 switch i8 %tmp43, label %bb123 [ 57 i8 101, label %cond_true47 58 i8 69, label %bb105.preheader 59 ] 60 61 cond_true47: ; preds = %bb 62 %tmp52 = getelementptr %struct.rtx_def* %x, i32 0, i32 3, i32 %i.01.0 ; <%struct..0anon*> [#uses=1] 63 %tmp5354 = bitcast %struct..0anon* %tmp52 to %struct.rtx_def** ; <%struct.rtx_def**> [#uses=1] 64 %tmp55 = load %struct.rtx_def** %tmp5354 ; <%struct.rtx_def*> [#uses=1] 65 %tmp58 = tail call %struct.rtx_def* @walk_fixup_memory_subreg( %struct.rtx_def* %tmp55, %struct.rtx_def* %insn ) nounwind ; <%struct.rtx_def*> [#uses=1] 66 %tmp62 = getelementptr %struct.rtx_def* %x, i32 0, i32 3, i32 %i.01.0, i32 0 ; <i32*> [#uses=1] 67 %tmp58.c = ptrtoint %struct.rtx_def* %tmp58 to i32 ; <i32> [#uses=1] 68 store i32 %tmp58.c, i32* %tmp62 69 %tmp6816 = load i8* %tmp42 ; <i8> [#uses=1] 70 %tmp6917 = icmp eq i8 %tmp6816, 69 ; <i1> [#uses=1] 71 br i1 %tmp6917, label %bb105.preheader, label %bb123 72 73 bb105.preheader: ; preds = %cond_true47, %bb 74 %tmp11020 = getelementptr %struct.rtx_def* %x, i32 0, i32 3, i32 %i.01.0 ; <%struct..0anon*> [#uses=1] 75 %tmp11111221 = bitcast %struct..0anon* %tmp11020 to %struct.rtvec_def** ; <%struct.rtvec_def**> [#uses=3] 76 %tmp11322 = load %struct.rtvec_def** %tmp11111221 ; <%struct.rtvec_def*> [#uses=1] 77 %tmp11423 = getelementptr %struct.rtvec_def* %tmp11322, i32 0, i32 0 ; <i32*> [#uses=1] 78 %tmp11524 = load i32* %tmp11423 ; <i32> [#uses=1] 79 %tmp11625 = icmp eq i32 %tmp11524, 0 ; <i1> [#uses=1] 80 br i1 %tmp11625, label %bb123, label %bb73 81 82 bb73: ; preds = %bb73, %bb105.preheader 83 %j.019 = phi i32 [ %tmp104, %bb73 ], [ 0, %bb105.preheader ] ; <i32> [#uses=3] 84 %tmp81 = load %struct.rtvec_def** %tmp11111221 ; <%struct.rtvec_def*> [#uses=2] 85 %tmp92 = getelementptr %struct.rtvec_def* %tmp81, i32 0, i32 1, i32 %j.019 ; <%struct..0anon*> [#uses=1] 86 %tmp9394 = bitcast %struct..0anon* %tmp92 to %struct.rtx_def** ; <%struct.rtx_def**> [#uses=1] 87 %tmp95 = load %struct.rtx_def** %tmp9394 ; <%struct.rtx_def*> [#uses=1] 88 %tmp98 = tail call %struct.rtx_def* @walk_fixup_memory_subreg( %struct.rtx_def* %tmp95, %struct.rtx_def* %insn ) nounwind ; <%struct.rtx_def*> [#uses=1] 89 %tmp101 = getelementptr %struct.rtvec_def* %tmp81, i32 0, i32 1, i32 %j.019, i32 0 ; <i32*> [#uses=1] 90 %tmp98.c = ptrtoint %struct.rtx_def* %tmp98 to i32 ; <i32> [#uses=1] 91 store i32 %tmp98.c, i32* %tmp101 92 %tmp104 = add i32 %j.019, 1 ; <i32> [#uses=2] 93 %tmp113 = load %struct.rtvec_def** %tmp11111221 ; <%struct.rtvec_def*> [#uses=1] 94 %tmp114 = getelementptr %struct.rtvec_def* %tmp113, i32 0, i32 0 ; <i32*> [#uses=1] 95 %tmp115 = load i32* %tmp114 ; <i32> [#uses=1] 96 %tmp116 = icmp ult i32 %tmp104, %tmp115 ; <i1> [#uses=1] 97 br i1 %tmp116, label %bb73, label %bb123 98 99 bb123: ; preds = %bb73, %bb105.preheader, %cond_true47, %bb 100 %i.0 = add i32 %i.01.0, -1 ; <i32> [#uses=1] 101 %tmp125 = icmp sgt i32 %i.0, -1 ; <i1> [#uses=1] 102 %indvar.next26 = add i32 %indvar, 1 ; <i32> [#uses=1] 103 br i1 %tmp125, label %bb, label %UnifiedReturnBlock 104 105 UnifiedReturnBlock: ; preds = %bb123, %cond_next32, %entry 106 %UnifiedRetVal = phi %struct.rtx_def* [ null, %entry ], [ %x, %cond_next32 ], [ %x, %bb123 ] ; <%struct.rtx_def*> [#uses=1] 107 ret %struct.rtx_def* %UnifiedRetVal 108 } 109
