| ; RUN: opt < %s -instsimplify -S | FileCheck %s |
| |
| define i32 @test1(i32 %x) { |
| %and = and i32 %x, 1 |
| %cmp = icmp eq i32 %and, 0 |
| %and1 = and i32 %x, -2 |
| %and1.x = select i1 %cmp, i32 %and1, i32 %x |
| ret i32 %and1.x |
| ; CHECK-LABEL: @test1( |
| ; CHECK: ret i32 %x |
| } |
| |
| define i32 @test2(i32 %x) { |
| %and = and i32 %x, 1 |
| %cmp = icmp ne i32 %and, 0 |
| %and1 = and i32 %x, -2 |
| %and1.x = select i1 %cmp, i32 %x, i32 %and1 |
| ret i32 %and1.x |
| ; CHECK-LABEL: @test2( |
| ; CHECK: ret i32 %x |
| } |
| |
| define i32 @test3(i32 %x) { |
| %and = and i32 %x, 1 |
| %cmp = icmp ne i32 %and, 0 |
| %and1 = and i32 %x, -2 |
| %and1.x = select i1 %cmp, i32 %and1, i32 %x |
| ret i32 %and1.x |
| ; CHECK-LABEL: @test3( |
| ; CHECK: %[[and:.*]] = and i32 %x, -2 |
| ; CHECK: ret i32 %[[and]] |
| } |
| |
| define i32 @test4(i32 %X) { |
| %cmp = icmp slt i32 %X, 0 |
| %or = or i32 %X, -2147483648 |
| %cond = select i1 %cmp, i32 %X, i32 %or |
| ret i32 %cond |
| ; CHECK-LABEL: @test4 |
| ; CHECK: %[[or:.*]] = or i32 %X, -2147483648 |
| ; CHECK: ret i32 %[[or]] |
| } |
| |
| define i32 @test5(i32 %X) { |
| %cmp = icmp slt i32 %X, 0 |
| %or = or i32 %X, -2147483648 |
| %cond = select i1 %cmp, i32 %or, i32 %X |
| ret i32 %cond |
| ; CHECK-LABEL: @test5 |
| ; CHECK: ret i32 %X |
| } |
| |
| define i32 @test6(i32 %X) { |
| %cmp = icmp slt i32 %X, 0 |
| %and = and i32 %X, 2147483647 |
| %cond = select i1 %cmp, i32 %and, i32 %X |
| ret i32 %cond |
| ; CHECK-LABEL: @test6 |
| ; CHECK: %[[and:.*]] = and i32 %X, 2147483647 |
| ; CHECK: ret i32 %[[and]] |
| } |
| |
| define i32 @test7(i32 %X) { |
| %cmp = icmp slt i32 %X, 0 |
| %and = and i32 %X, 2147483647 |
| %cond = select i1 %cmp, i32 %X, i32 %and |
| ret i32 %cond |
| ; CHECK-LABEL: @test7 |
| ; CHECK: ret i32 %X |
| } |
| |
| define i32 @test8(i32 %X) { |
| %cmp = icmp sgt i32 %X, -1 |
| %or = or i32 %X, -2147483648 |
| %cond = select i1 %cmp, i32 %X, i32 %or |
| ret i32 %cond |
| ; CHECK-LABEL: @test8 |
| ; CHECK: ret i32 %X |
| } |
| |
| define i32 @test9(i32 %X) { |
| %cmp = icmp sgt i32 %X, -1 |
| %or = or i32 %X, -2147483648 |
| %cond = select i1 %cmp, i32 %or, i32 %X |
| ret i32 %cond |
| ; CHECK-LABEL: @test9 |
| ; CHECK: %[[or:.*]] = or i32 %X, -2147483648 |
| ; CHECK: ret i32 %[[or]] |
| } |
| |
| define i32 @test10(i32 %X) { |
| %cmp = icmp sgt i32 %X, -1 |
| %and = and i32 %X, 2147483647 |
| %cond = select i1 %cmp, i32 %and, i32 %X |
| ret i32 %cond |
| ; CHECK-LABEL: @test10 |
| ; CHECK: ret i32 %X |
| } |
| |
| define i32 @test11(i32 %X) { |
| %cmp = icmp sgt i32 %X, -1 |
| %and = and i32 %X, 2147483647 |
| %cond = select i1 %cmp, i32 %X, i32 %and |
| ret i32 %cond |
| ; CHECK-LABEL: @test11 |
| ; CHECK: %[[and:.*]] = and i32 %X, 2147483647 |
| ; CHECK: ret i32 %[[and]] |
| } |
| |
| ; CHECK-LABEL: @select_icmp_and_8_eq_0_or_8( |
| ; CHECK-NEXT: [[OR:%[a-z0-9]+]] = or i32 %x, 8 |
| ; CHECK-NEXT: ret i32 [[OR]] |
| define i32 @select_icmp_and_8_eq_0_or_8(i32 %x) { |
| %and = and i32 %x, 8 |
| %cmp = icmp eq i32 %and, 0 |
| %or = or i32 %x, 8 |
| %or.x = select i1 %cmp, i32 %or, i32 %x |
| ret i32 %or.x |
| } |
| |
| ; CHECK-LABEL: @select_icmp_and_8_ne_0_and_not_8( |
| ; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 %x, -9 |
| ; CHECK-NEXT: ret i32 [[AND]] |
| define i32 @select_icmp_and_8_ne_0_and_not_8(i32 %x) { |
| %and = and i32 %x, 8 |
| %cmp = icmp eq i32 %and, 0 |
| %and1 = and i32 %x, -9 |
| %x.and1 = select i1 %cmp, i32 %x, i32 %and1 |
| ret i32 %x.and1 |
| } |
| |
| ; CHECK-LABEL: @select_icmp_and_8_eq_0_and_not_8( |
| ; CHECK-NEXT: ret i32 %x |
| define i32 @select_icmp_and_8_eq_0_and_not_8(i32 %x) { |
| %and = and i32 %x, 8 |
| %cmp = icmp eq i32 %and, 0 |
| %and1 = and i32 %x, -9 |
| %and1.x = select i1 %cmp, i32 %and1, i32 %x |
| ret i32 %and1.x |
| } |
| |
| ; CHECK-LABEL: @select_icmp_x_and_8_eq_0_y_and_not_8( |
| ; CHECK: select i1 %cmp, i64 %y, i64 %and1 |
| define i64 @select_icmp_x_and_8_eq_0_y_and_not_8(i32 %x, i64 %y) { |
| %and = and i32 %x, 8 |
| %cmp = icmp eq i32 %and, 0 |
| %and1 = and i64 %y, -9 |
| %y.and1 = select i1 %cmp, i64 %y, i64 %and1 |
| ret i64 %y.and1 |
| } |
| |
| ; CHECK-LABEL: @select_icmp_x_and_8_ne_0_y_and_not_8( |
| ; CHECK: select i1 %cmp, i64 %and1, i64 %y |
| define i64 @select_icmp_x_and_8_ne_0_y_and_not_8(i32 %x, i64 %y) { |
| %and = and i32 %x, 8 |
| %cmp = icmp eq i32 %and, 0 |
| %and1 = and i64 %y, -9 |
| %and1.y = select i1 %cmp, i64 %and1, i64 %y |
| ret i64 %and1.y |
| } |
| |