| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -indvars -S | FileCheck %s |
| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" |
| target triple = "i386-apple-darwin10.0" |
| |
| ; We make sinking here, Changed flag should be set properly. |
| define i32 @test(i32 %a, i32 %b, i32 %N) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] |
| ; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[IV_NEXT]], [[N:%.*]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: ret i32 [[ADD]] |
| ; |
| entry: |
| %add = add i32 %a, %b |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] |
| %iv.next = add i32 %iv, 1 |
| %cmp = icmp slt i32 %iv.next, %N |
| br i1 %cmp, label %loop, label %exit |
| |
| exit: |
| ret i32 %add |
| } |
