| ; XFAIL: * |
| ; REQUIRES: asserts |
| ; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -loop-simplifycfg -debug-only=loop-simplifycfg -verify-loop-info -verify-dom-info -verify-loop-lcssa 2>&1 < %s | FileCheck %s |
| ; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -passes='require<domtree>,loop(simplify-cfg)' -debug-only=loop-simplifycfg -verify-loop-info -verify-dom-info -verify-loop-lcssa 2>&1 < %s | FileCheck %s |
| ; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -loop-simplifycfg -enable-mssa-loop-dependency=true -verify-memoryssa -debug-only=loop-simplifycfg -verify-loop-info -verify-dom-info -verify-loop-lcssa 2>&1 < %s | FileCheck %s |
| |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define void @test() { |
| |
| ; CHECK-LABEL: @test( |
| |
| br label %bb1 |
| |
| bb1: ; preds = %bb4, %0 |
| br label %bb2 |
| |
| bb2: ; preds = %bb6, %bb1 |
| br label %bb3 |
| |
| bb3: ; preds = %bb8, %bb3, %bb2 |
| br i1 false, label %bb4, label %bb3 |
| |
| bb4: ; preds = %bb8, %bb3 |
| br i1 undef, label %bb1, label %bb6 |
| |
| bb6: ; preds = %bb4 |
| br i1 undef, label %bb2, label %bb8 |
| |
| bb8: ; preds = %bb6 |
| br i1 true, label %bb4, label %bb3 |
| } |
| |
| define void @test_many_subloops(i1 %c) { |
| |
| ; CHECK-LABEL: @test_many_subloops( |
| |
| br label %bb1 |
| |
| bb1: |
| br label %bb2 |
| |
| bb2: |
| br label %bb3 |
| |
| bb3: |
| br i1 false, label %bb4, label %bb3 |
| |
| bb4: |
| br i1 undef, label %bb1, label %subloop1 |
| |
| subloop1: |
| br i1 %c, label %subloop2, label %subloop11 |
| |
| subloop11: |
| br i1 %c, label %subloop11, label %subloop12 |
| |
| subloop12: |
| br i1 %c, label %subloop12, label %subloop13 |
| |
| subloop13: |
| br i1 %c, label %subloop13, label %subloop1_latch |
| |
| subloop1_latch: |
| br label %subloop1 |
| |
| subloop2: |
| br i1 %c, label %bb6, label %subloop21 |
| |
| subloop21: |
| br i1 %c, label %subloop21, label %subloop22 |
| |
| subloop22: |
| br i1 %c, label %subloop22, label %subloop23 |
| |
| subloop23: |
| br i1 %c, label %subloop23, label %subloop2_latch |
| |
| subloop2_latch: |
| br label %subloop2 |
| |
| bb6: |
| br i1 undef, label %bb2, label %bb8 |
| |
| bb8: |
| br i1 true, label %bb4, label %bb3 |
| } |
