| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -constraint-elimination -S %s | FileCheck %s |
| |
| ; Make sure we do not incorrectly add variables to the system. |
| |
| define i1 @test(i32* %p1, i32* %p2, i32 %num_rows, i32 %start_row, i1 %c) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[NUM_ROWS:%.*]], [[START_ROW:%.*]] |
| ; CHECK-NEXT: [[L3:%.*]] = load i32, i32* [[P1:%.*]], align 4 |
| ; CHECK-NEXT: [[CMP6:%.*]] = icmp ugt i32 [[L3]], [[START_ROW]] |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_END36:%.*]], label [[IF_END36]] |
| ; CHECK: if.end36: |
| ; CHECK-NEXT: [[L1:%.*]] = load i32, i32* [[P2:%.*]], align 4 |
| ; CHECK-NEXT: [[CMP37:%.*]] = icmp ult i32 [[L1]], [[ADD]] |
| ; CHECK-NEXT: br i1 [[CMP37]], label [[IF_THEN39:%.*]], label [[EXIT:%.*]] |
| ; CHECK: if.then39: |
| ; CHECK-NEXT: [[CMP41:%.*]] = icmp ult i32 [[L1]], [[START_ROW]] |
| ; CHECK-NEXT: ret i1 [[CMP41]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: ret i1 false |
| ; |
| entry: |
| %add = add i32 %num_rows, %start_row |
| %l3 = load i32, i32* %p1, align 4 |
| %cmp6 = icmp ugt i32 %l3, %start_row |
| br i1 %c, label %if.end36, label %if.end36 |
| |
| if.end36: ; preds = %if.then11 |
| %l1 = load i32, i32* %p2, align 4 |
| %cmp37 = icmp ult i32 %l1, %add |
| br i1 %cmp37, label %if.then39, label %exit |
| |
| if.then39: ; preds = %if.end36 |
| %cmp41 = icmp ult i32 %l1, %start_row |
| ret i1 %cmp41 |
| |
| exit: ; preds = %if.end36 |
| ret i1 false |
| } |
