| ; RUN: opt -loop-rotate -disable-output -verify-dom-info -verify-loop-info < %s |
| ; RUN: opt -loop-rotate -disable-output -verify-dom-info -verify-loop-info -enable-mssa-loop-dependency=true -verify-memoryssa < %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| target triple = "x86_64-apple-darwin10.0.0" |
| |
| ; PR8955 - Rotating an outer loop that has a condbr for a latch block. |
| define void @test1() nounwind ssp { |
| entry: |
| br label %lbl_283 |
| |
| lbl_283: ; preds = %if.end, %entry |
| br i1 undef, label %if.else, label %if.then |
| |
| if.then: ; preds = %lbl_283 |
| br i1 undef, label %if.end, label %for.condthread-pre-split |
| |
| for.condthread-pre-split: ; preds = %if.then |
| br label %for.cond |
| |
| for.cond: ; preds = %for.cond, %for.condthread-pre-split |
| br i1 undef, label %lbl_281, label %for.cond |
| |
| lbl_281: ; preds = %if.end, %for.cond |
| br label %if.end |
| |
| if.end: ; preds = %lbl_281, %if.then |
| br i1 undef, label %lbl_283, label %lbl_281 |
| |
| if.else: ; preds = %lbl_283 |
| ret void |
| } |
| |
| %struct.relation = type { [4 x i16], i32, [4 x i16], i32, i32 } |
| |
| define void @test2() { |
| entry: |
| br i1 false, label %bb139, label %bb10.i44 |
| bb10.i44: ; preds = %entry |
| ret void |
| bb127: ; preds = %bb139 |
| br label %bb139 |
| bb139: ; preds = %bb127, %entry |
| br i1 false, label %bb127, label %bb142 |
| bb142: ; preds = %bb139 |
| %r91.0.lcssa = phi %struct.relation* [ null, %bb139 ] ; <%struct.relation*> [#uses=0] |
| ret void |
| } |
| |
| |
| define void @test3() { |
| entry: |
| br i1 false, label %bb139, label %cond_true |
| cond_true: ; preds = %entry |
| ret void |
| bb90: ; preds = %bb139 |
| br i1 false, label %bb136, label %cond_next121 |
| cond_next121: ; preds = %bb90 |
| br i1 false, label %bb136, label %bb127 |
| bb127: ; preds = %cond_next121 |
| br label %bb136 |
| bb136: ; preds = %bb127, %cond_next121, %bb90 |
| %changes.1 = phi i32 [ %changes.2, %bb90 ], [ %changes.2, %cond_next121 ], [ 1, %bb127 ] ; <i32> [#uses=1] |
| br label %bb139 |
| bb139: ; preds = %bb136, %entry |
| %changes.2 = phi i32 [ %changes.1, %bb136 ], [ 0, %entry ] ; <i32> [#uses=3] |
| br i1 false, label %bb90, label %bb142 |
| bb142: ; preds = %bb139 |
| %changes.2.lcssa = phi i32 [ %changes.2, %bb139 ] ; <i32> [#uses=0] |
| ret void |
| } |
| |
| define void @test4() { |
| entry: |
| br i1 false, label %cond_false485, label %bb405 |
| bb405: ; preds = %entry |
| ret void |
| cond_false485: ; preds = %entry |
| br label %bb830 |
| bb511: ; preds = %bb830 |
| br i1 false, label %bb816, label %bb830 |
| cond_next667: ; preds = %bb816 |
| br i1 false, label %cond_next695, label %bb680 |
| bb676: ; preds = %bb680 |
| br label %bb680 |
| bb680: ; preds = %bb676, %cond_next667 |
| %iftmp.68.0 = zext i1 false to i8 ; <i8> [#uses=1] |
| br i1 false, label %bb676, label %cond_next695 |
| cond_next695: ; preds = %bb680, %cond_next667 |
| %iftmp.68.2 = phi i8 [ %iftmp.68.0, %bb680 ], [ undef, %cond_next667 ] ; <i8> [#uses=0] |
| ret void |
| bb816: ; preds = %bb816, %bb511 |
| br i1 false, label %cond_next667, label %bb816 |
| bb830: ; preds = %bb511, %cond_false485 |
| br i1 false, label %bb511, label %bb835 |
| bb835: ; preds = %bb830 |
| ret void |
| } |
| |
| %struct.NSArray = type { %struct.NSObject } |
| %struct.NSObject = type { %struct.objc_class* } |
| %struct.NSRange = type { i64, i64 } |
| %struct._message_ref_t = type { %struct.NSObject* (%struct.NSObject*, %struct._message_ref_t*, ...)*, %struct.objc_selector* } |
| %struct.objc_class = type opaque |
| %struct.objc_selector = type opaque |
| @"\01L_OBJC_MESSAGE_REF_26" = external global %struct._message_ref_t ; <%struct._message_ref_t*> [#uses=1] |
| |
| define %struct.NSArray* @test5(%struct.NSArray* %self, %struct._message_ref_t* %_cmd) { |
| entry: |
| br label %bb116 |
| |
| bb116: ; preds = %bb131, %entry |
| %tmp123 = call %struct.NSRange null( %struct.NSObject* null, %struct._message_ref_t* @"\01L_OBJC_MESSAGE_REF_26", %struct.NSArray* null ) ; <%struct.NSRange> [#uses=1] |
| br i1 false, label %bb141, label %bb131 |
| |
| bb131: ; preds = %bb116 |
| %mrv_gr125 = extractvalue %struct.NSRange %tmp123, 1 ; <i64> [#uses=0] |
| br label %bb116 |
| |
| bb141: ; preds = %bb116 |
| ret %struct.NSArray* null |
| } |
| |
| define void @test6(i8* %msg) { |
| entry: |
| br label %bb15 |
| bb6: ; preds = %bb15 |
| %gep.upgrd.1 = zext i32 %offset.1 to i64 ; <i64> [#uses=1] |
| %tmp11 = getelementptr i8, i8* %msg, i64 %gep.upgrd.1 ; <i8*> [#uses=0] |
| br label %bb15 |
| bb15: ; preds = %bb6, %entry |
| %offset.1 = add i32 0, 1 ; <i32> [#uses=2] |
| br i1 false, label %bb6, label %bb17 |
| bb17: ; preds = %bb15 |
| %offset.1.lcssa = phi i32 [ %offset.1, %bb15 ] ; <i32> [#uses=0] |
| %payload_type.1.lcssa = phi i32 [ 0, %bb15 ] ; <i32> [#uses=0] |
| ret void |
| } |
| |
| |
| |
| |
| ; PR9523 - Non-canonical loop. |
| define void @test7(i8* %P) nounwind { |
| entry: |
| indirectbr i8* %P, [label %"3", label %"5"] |
| |
| "3": ; preds = %"4", %entry |
| br i1 undef, label %"5", label %"4" |
| |
| "4": ; preds = %"3" |
| br label %"3" |
| |
| "5": ; preds = %"3", %entry |
| ret void |
| } |
| |
| ; PR21968 |
| define void @test8(i1 %C, i8* %P) #0 { |
| entry: |
| br label %for.cond |
| |
| for.cond: ; preds = %for.inc, %entry |
| br i1 %C, label %l_bad, label %for.body |
| |
| for.body: ; preds = %for.cond |
| indirectbr i8* %P, [label %for.inc, label %l_bad] |
| |
| for.inc: ; preds = %for.body |
| br label %for.cond |
| |
| l_bad: ; preds = %for.body, %for.cond |
| ret void |
| } |