| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -indvars -S | FileCheck %s |
| |
| define void @test1() nounwind { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[BB:%.*]] |
| ; CHECK: bb: |
| ; CHECK-NEXT: [[IV_INT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[DOTINT:%.*]], [[BB]] ] |
| ; CHECK-NEXT: [[INDVAR_CONV:%.*]] = sitofp i32 [[IV_INT]] to double |
| ; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @foo(double [[INDVAR_CONV]]) #0 |
| ; CHECK-NEXT: [[DOTINT]] = add nuw nsw i32 [[IV_INT]], 1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[DOTINT]], 10000 |
| ; CHECK-NEXT: br i1 [[TMP1]], label [[BB]], label [[RETURN:%.*]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %bb |
| |
| bb: ; preds = %bb, %entry |
| %iv = phi double [ 0.000000e+00, %entry ], [ %1, %bb ] |
| %0 = tail call i32 @foo(double %iv) nounwind |
| %1 = fadd double %iv, 1.000000e+00 |
| %2 = fcmp olt double %1, 1.000000e+04 |
| br i1 %2, label %bb, label %return |
| |
| return: ; preds = %bb |
| ret void |
| } |
| |
| declare i32 @foo(double) |
| |
| define void @test2() nounwind { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[BB:%.*]] |
| ; CHECK: bb: |
| ; CHECK-NEXT: [[IV_INT:%.*]] = phi i32 [ -10, [[ENTRY:%.*]] ], [ [[DOTINT:%.*]], [[BB]] ] |
| ; CHECK-NEXT: [[INDVAR_CONV:%.*]] = sitofp i32 [[IV_INT]] to double |
| ; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @foo(double [[INDVAR_CONV]]) #0 |
| ; CHECK-NEXT: [[DOTINT]] = add nsw i32 [[IV_INT]], 2 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[DOTINT]], -1 |
| ; CHECK-NEXT: br i1 [[TMP1]], label [[BB]], label [[RETURN:%.*]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %bb |
| |
| bb: ; preds = %bb, %entry |
| %iv = phi double [ -10.000000e+00, %entry ], [ %1, %bb ] |
| %0 = tail call i32 @foo(double %iv) nounwind |
| %1 = fadd double %iv, 2.000000e+00 |
| %2 = fcmp olt double %1, -1.000000e+00 |
| br i1 %2, label %bb, label %return |
| |
| return: ; preds = %bb |
| ret void |
| } |
| |
| |
| define void @test3() nounwind { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[BB:%.*]] |
| ; CHECK: bb: |
| ; CHECK-NEXT: [[IV:%.*]] = phi double [ 0.000000e+00, [[ENTRY:%.*]] ], [ [[TMP1:%.*]], [[BB]] ] |
| ; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @foo(double [[IV]]) #0 |
| ; CHECK-NEXT: [[TMP1]] = fadd double [[IV]], 1.000000e+00 |
| ; CHECK-NEXT: br i1 false, label [[BB]], label [[RETURN:%.*]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %bb |
| |
| bb: ; preds = %bb, %entry |
| %iv = phi double [ 0.000000e+00, %entry ], [ %1, %bb ] |
| %0 = tail call i32 @foo(double %iv) nounwind |
| %1 = fadd double %iv, 1.000000e+00 |
| %2 = fcmp olt double %1, -1.000000e+00 |
| br i1 %2, label %bb, label %return |
| |
| return: |
| ret void |
| } |
| |
| define void @test4() nounwind { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[BB:%.*]] |
| ; CHECK: bb: |
| ; CHECK-NEXT: [[IV_INT:%.*]] = phi i32 [ 40, [[ENTRY:%.*]] ], [ [[DOTINT:%.*]], [[BB]] ] |
| ; CHECK-NEXT: [[INDVAR_CONV:%.*]] = sitofp i32 [[IV_INT]] to double |
| ; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @foo(double [[INDVAR_CONV]]) #0 |
| ; CHECK-NEXT: [[DOTINT]] = add nsw i32 [[IV_INT]], -1 |
| ; CHECK-NEXT: br i1 false, label [[BB]], label [[RETURN:%.*]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %bb |
| |
| bb: ; preds = %bb, %entry |
| %iv = phi double [ 40.000000e+00, %entry ], [ %1, %bb ] |
| %0 = tail call i32 @foo(double %iv) nounwind |
| %1 = fadd double %iv, -1.000000e+00 |
| %2 = fcmp olt double %1, 1.000000e+00 |
| br i1 %2, label %bb, label %return |
| |
| return: |
| ret void |
| } |
| |
| ; PR6761 |
| define void @test5() nounwind { |
| ; <label>:0 |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: br label [[TMP1:%.*]] |
| ; CHECK: 1: |
| ; CHECK-NEXT: [[DOTINT:%.*]] = phi i32 [ 9, [[TMP0:%.*]] ], [ [[DOTINT1:%.*]], [[TMP1]] ] |
| ; CHECK-NEXT: [[TMP2:%.*]] = tail call i32 @foo(double 0.000000e+00) |
| ; CHECK-NEXT: [[DOTINT1]] = add nsw i32 [[DOTINT]], -1 |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp slt i32 [[DOTINT1]], 0 |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[EXIT:%.*]], label [[TMP1]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: ret void |
| ; |
| br label %1 |
| |
| ; <label>:1 |
| %2 = phi double [ 9.000000e+00, %0 ], [ %4, %1 ] |
| %3 = tail call i32 @foo(double 0.0) |
| %4 = fadd double %2, -1.000000e+00 |
| %5 = fcmp ult double %4, 0.000000e+00 |
| br i1 %5, label %exit, label %1 |
| |
| exit: |
| ret void |
| } |