| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -indvars -S | FileCheck %s |
| |
| ; Indvars should be able to compute the exit value of this loop |
| ; without any additional arithmetic. The only add needed should |
| ; be the canonical IV increment. |
| |
| 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" |
| |
| define void @foo(double* %p, i32 %n) nounwind { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp sgt i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP0]], label [[BB_NPH:%.*]], label [[RETURN:%.*]] |
| ; CHECK: bb.nph: |
| ; CHECK-NEXT: br label [[BB2:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: [[I_01:%.*]] = phi i32 [ [[TMP7:%.*]], [[BB3:%.*]] ], [ 0, [[BB_NPH]] ] |
| ; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[I_01]] to i64 |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr double, double* [[P:%.*]], i64 [[TMP1]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = load double, double* [[TMP2]], align 8 |
| ; CHECK-NEXT: [[TMP4:%.*]] = fmul double [[TMP3]], 1.100000e+00 |
| ; CHECK-NEXT: [[TMP5:%.*]] = sext i32 [[I_01]] to i64 |
| ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr double, double* [[P]], i64 [[TMP5]] |
| ; CHECK-NEXT: store double [[TMP4]], double* [[TMP6]], align 8 |
| ; CHECK-NEXT: [[TMP7]] = add nuw nsw i32 [[I_01]], 1 |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[TMP8:%.*]] = icmp slt i32 [[TMP7]], [[N]] |
| ; CHECK-NEXT: br i1 [[TMP8]], label [[BB2]], label [[BB3_RETURN_CRIT_EDGE:%.*]] |
| ; CHECK: bb3.return_crit_edge: |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret void |
| ; |
| |
| entry: |
| %0 = icmp sgt i32 %n, 0 |
| br i1 %0, label %bb.nph, label %return |
| |
| bb.nph: ; preds = %entry |
| br label %bb2 |
| |
| bb2: ; preds = %bb3, %bb.nph |
| %i.01 = phi i32 [ %7, %bb3 ], [ 0, %bb.nph ] |
| %1 = sext i32 %i.01 to i64 |
| %2 = getelementptr double, double* %p, i64 %1 |
| %3 = load double, double* %2, align 8 |
| %4 = fmul double %3, 1.100000e+00 |
| %5 = sext i32 %i.01 to i64 |
| %6 = getelementptr double, double* %p, i64 %5 |
| store double %4, double* %6, align 8 |
| %7 = add i32 %i.01, 1 |
| br label %bb3 |
| |
| bb3: ; preds = %bb2 |
| %8 = icmp slt i32 %7, %n |
| br i1 %8, label %bb2, label %bb3.return_crit_edge |
| |
| bb3.return_crit_edge: ; preds = %bb3 |
| br label %return |
| |
| return: ; preds = %bb3.return_crit_edge, %entry |
| ret void |
| } |
