| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| declare void @use(i32) |
| |
| define i32 @testAdd(i32 %X, i32 %Y) { |
| ; CHECK-LABEL: @testAdd( |
| ; CHECK-NEXT: [[T:%.*]] = add i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i32 [[T]] |
| ; |
| %t = add i32 %X, %Y |
| %tl = bitcast i32 %t to i32 |
| ret i32 %tl |
| } |
| |
| define i32 @and_sext_to_sel(i32 %x, i1 %y) { |
| ; CHECK-LABEL: @and_sext_to_sel( |
| ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y:%.*]], i32 [[X:%.*]], i32 0 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| %r = and i32 %sext, %x |
| ret i32 %r |
| } |
| |
| define <2 x i32> @and_sext_to_sel_constant_vec(<2 x i1> %y) { |
| ; CHECK-LABEL: @and_sext_to_sel_constant_vec( |
| ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> <i32 42, i32 -7>, <2 x i32> zeroinitializer |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %sext = sext <2 x i1> %y to <2 x i32> |
| %r = and <2 x i32> <i32 42, i32 -7>, %sext |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @and_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) { |
| ; CHECK-LABEL: @and_sext_to_sel_swap( |
| ; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]] |
| ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> [[X]], <2 x i32> zeroinitializer |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization |
| %sext = sext <2 x i1> %y to <2 x i32> |
| %r = and <2 x i32> %x, %sext |
| ret <2 x i32> %r |
| } |
| |
| define i32 @and_sext_to_sel_multi_use(i32 %x, i1 %y) { |
| ; CHECK-LABEL: @and_sext_to_sel_multi_use( |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 |
| ; CHECK-NEXT: call void @use(i32 [[SEXT]]) |
| ; CHECK-NEXT: [[R:%.*]] = and i32 [[SEXT]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| call void @use(i32 %sext) |
| %r = and i32 %sext, %x |
| ret i32 %r |
| } |
| |
| define i32 @and_sext_to_sel_multi_use_constant_mask(i1 %y) { |
| ; CHECK-LABEL: @and_sext_to_sel_multi_use_constant_mask( |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 |
| ; CHECK-NEXT: call void @use(i32 [[SEXT]]) |
| ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y]], i32 42, i32 0 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| call void @use(i32 %sext) |
| %r = and i32 %sext, 42 |
| ret i32 %r |
| } |
| |
| define i32 @or_sext_to_sel(i32 %x, i1 %y) { |
| ; CHECK-LABEL: @or_sext_to_sel( |
| ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y:%.*]], i32 -1, i32 [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| %r = or i32 %sext, %x |
| ret i32 %r |
| } |
| |
| define <2 x i32> @or_sext_to_sel_constant_vec(<2 x i1> %y) { |
| ; CHECK-LABEL: @or_sext_to_sel_constant_vec( |
| ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> <i32 -1, i32 -1>, <2 x i32> <i32 42, i32 -7> |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %sext = sext <2 x i1> %y to <2 x i32> |
| %r = or <2 x i32> <i32 42, i32 -7>, %sext |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @or_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) { |
| ; CHECK-LABEL: @or_sext_to_sel_swap( |
| ; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]] |
| ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> <i32 -1, i32 -1>, <2 x i32> [[X]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization |
| %sext = sext <2 x i1> %y to <2 x i32> |
| %r = or <2 x i32> %x, %sext |
| ret <2 x i32> %r |
| } |
| |
| define i32 @or_sext_to_sel_multi_use(i32 %x, i1 %y) { |
| ; CHECK-LABEL: @or_sext_to_sel_multi_use( |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 |
| ; CHECK-NEXT: call void @use(i32 [[SEXT]]) |
| ; CHECK-NEXT: [[R:%.*]] = or i32 [[SEXT]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| call void @use(i32 %sext) |
| %r = or i32 %sext, %x |
| ret i32 %r |
| } |
| |
| define i32 @or_sext_to_sel_multi_use_constant_mask(i1 %y) { |
| ; CHECK-LABEL: @or_sext_to_sel_multi_use_constant_mask( |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 |
| ; CHECK-NEXT: call void @use(i32 [[SEXT]]) |
| ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y]], i32 -1, i32 42 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| call void @use(i32 %sext) |
| %r = or i32 %sext, 42 |
| ret i32 %r |
| } |
| |
| define i32 @xor_sext_to_sel(i32 %x, i1 %y) { |
| ; CHECK-LABEL: @xor_sext_to_sel( |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| %r = xor i32 %sext, %x |
| ret i32 %r |
| } |
| |
| define <2 x i32> @xor_sext_to_sel_constant_vec(<2 x i1> %y) { |
| ; CHECK-LABEL: @xor_sext_to_sel_constant_vec( |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[Y:%.*]] to <2 x i32> |
| ; CHECK-NEXT: [[R:%.*]] = xor <2 x i32> [[SEXT]], <i32 42, i32 -7> |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %sext = sext <2 x i1> %y to <2 x i32> |
| %r = xor <2 x i32> <i32 42, i32 -7>, %sext |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @xor_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) { |
| ; CHECK-LABEL: @xor_sext_to_sel_swap( |
| ; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]] |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[Y:%.*]] to <2 x i32> |
| ; CHECK-NEXT: [[R:%.*]] = xor <2 x i32> [[X]], [[SEXT]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization |
| %sext = sext <2 x i1> %y to <2 x i32> |
| %r = xor <2 x i32> %x, %sext |
| ret <2 x i32> %r |
| } |
| |
| define i32 @xor_sext_to_sel_multi_use(i32 %x, i1 %y) { |
| ; CHECK-LABEL: @xor_sext_to_sel_multi_use( |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 |
| ; CHECK-NEXT: call void @use(i32 [[SEXT]]) |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| call void @use(i32 %sext) |
| %r = xor i32 %sext, %x |
| ret i32 %r |
| } |
| |
| define i32 @xor_sext_to_sel_multi_use_constant_mask(i1 %y) { |
| ; CHECK-LABEL: @xor_sext_to_sel_multi_use_constant_mask( |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 |
| ; CHECK-NEXT: call void @use(i32 [[SEXT]]) |
| ; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], 42 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %sext = sext i1 %y to i32 |
| call void @use(i32 %sext) |
| %r = xor i32 %sext, 42 |
| ret i32 %r |
| } |