| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -passes=ipsccp -S | FileCheck %s |
| |
| declare void @use(i1) |
| define void @sdiv1_cmp_constants(i32 %x) { |
| ; CHECK-LABEL: @sdiv1_cmp_constants( |
| ; CHECK-NEXT: [[D:%.*]] = sdiv i32 1, [[X:%.*]] |
| ; CHECK-NEXT: [[C_0:%.*]] = icmp slt i32 0, [[D]] |
| ; CHECK-NEXT: call void @use(i1 [[C_0]]) |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: [[C_3:%.*]] = icmp eq i32 1, [[D]] |
| ; CHECK-NEXT: call void @use(i1 [[C_3]]) |
| ; CHECK-NEXT: [[C_4:%.*]] = icmp eq i32 0, [[D]] |
| ; CHECK-NEXT: call void @use(i1 [[C_4]]) |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: ret void |
| ; |
| %d = sdiv i32 1, %x |
| %c.0 = icmp slt i32 0, %d |
| call void @use(i1 %c.0) |
| %c.1 = icmp slt i32 1, %d |
| call void @use(i1 %c.1) |
| %c.2 = icmp slt i32 2, %d |
| call void @use(i1 %c.2) |
| |
| %c.3 = icmp eq i32 1, %d |
| call void @use(i1 %c.3) |
| %c.4 = icmp eq i32 0, %d |
| call void @use(i1 %c.4) |
| %c.5 = icmp eq i32 2, %d |
| call void @use(i1 %c.5) |
| |
| ret void |
| } |
| |
| define void @sdiv1_cmp_range_1(i32 %x, i1 %c) { |
| ; CHECK-LABEL: @sdiv1_cmp_range_1( |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[P:%.*]] = phi i32 [ 1, [[BB1]] ], [ 2, [[BB2]] ] |
| ; CHECK-NEXT: [[D:%.*]] = sdiv i32 1, [[X:%.*]] |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: [[C_1:%.*]] = icmp eq i32 [[P]], [[D]] |
| ; CHECK-NEXT: call void @use(i1 [[C_1]]) |
| ; CHECK-NEXT: ret void |
| ; |
| br i1 %c, label %bb1, label %bb2 |
| bb1: |
| br label %bb3 |
| bb2: |
| br label %bb3 |
| |
| bb3: |
| %p = phi i32 [1, %bb1], [2, %bb2] |
| %d = sdiv i32 1, %x |
| %c.0 = icmp slt i32 %p, %d |
| call void @use(i1 %c.0) |
| %c.1 = icmp eq i32 %p, %d |
| call void @use(i1 %c.1) |
| ret void |
| } |
| |
| |
| define void @sdiv1_cmp_range_2(i32 %x, i1 %c) { |
| ; CHECK-LABEL: @sdiv1_cmp_range_2( |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[P:%.*]] = phi i32 [ 3, [[BB1]] ], [ 2, [[BB2]] ] |
| ; CHECK-NEXT: [[D:%.*]] = sdiv i32 1, [[X:%.*]] |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: ret void |
| ; |
| br i1 %c, label %bb1, label %bb2 |
| bb1: |
| br label %bb3 |
| bb2: |
| br label %bb3 |
| |
| bb3: |
| %p = phi i32 [3, %bb1], [2, %bb2] |
| %d = sdiv i32 1, %x |
| %c.0 = icmp slt i32 %p, %d |
| call void @use(i1 %c.0) |
| %c.1 = icmp eq i32 %p, %d |
| call void @use(i1 %c.1) |
| ret void |
| } |
| |
| define void @urem_cmp_constants() { |
| ; CHECK-LABEL: @urem_cmp_constants( |
| ; CHECK-NEXT: call void @use(i1 true) |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: call void @use(i1 true) |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: [[UREM_3:%.*]] = urem i16 12704, 0 |
| ; CHECK-NEXT: [[C_5:%.*]] = icmp eq i16 [[UREM_3]], 1 |
| ; CHECK-NEXT: call void @use(i1 [[C_5]]) |
| ; CHECK-NEXT: ret void |
| ; |
| %sel = select i1 false, i16 0, i16 12704 |
| %urem.1 = urem i16 %sel, 12704 |
| %c.1 = icmp eq i16 %urem.1, 0 |
| call void @use(i1 %c.1) |
| %c.2 = icmp eq i16 %urem.1, 1 |
| call void @use(i1 %c.2) |
| %urem.2 = urem i16 %sel, 3 |
| %c.3 = icmp eq i16 %urem.2, 2 |
| call void @use(i1 %c.3) |
| %c.4 = icmp eq i16 %urem.2, 1 |
| call void @use(i1 %c.4) |
| %urem.3 = urem i16 %sel, 0 |
| %c.5 = icmp eq i16 %urem.3, 1 |
| call void @use(i1 %c.5) |
| ret void |
| } |
| |
| define void @srem_cmp_constants() { |
| ; CHECK-LABEL: @srem_cmp_constants( |
| ; CHECK-NEXT: call void @use(i1 true) |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: call void @use(i1 true) |
| ; CHECK-NEXT: call void @use(i1 false) |
| ; CHECK-NEXT: [[SREM_3:%.*]] = srem i16 12704, 0 |
| ; CHECK-NEXT: [[C_5:%.*]] = icmp eq i16 [[SREM_3]], 1 |
| ; CHECK-NEXT: call void @use(i1 [[C_5]]) |
| ; CHECK-NEXT: ret void |
| ; |
| %sel = select i1 false, i16 0, i16 12704 |
| %srem.1 = srem i16 %sel, 12704 |
| %c.1 = icmp eq i16 %srem.1, 0 |
| call void @use(i1 %c.1) |
| %c.2 = icmp eq i16 %srem.1, 1 |
| call void @use(i1 %c.2) |
| %srem.2 = srem i16 %sel, 3 |
| %c.3 = icmp eq i16 %srem.2, 2 |
| call void @use(i1 %c.3) |
| %c.4 = icmp eq i16 %srem.2, 1 |
| call void @use(i1 %c.4) |
| %srem.3 = srem i16 %sel, 0 |
| %c.5 = icmp eq i16 %srem.3, 1 |
| call void @use(i1 %c.5) |
| ret void |
| } |