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; 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
}
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