mirror of
https://github.com/c64scene-ar/llvm-6502.git
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9cd99a0724
(X & INT_MIN) ? X & INT_MAX : X into X & INT_MAX (X & INT_MIN) ? X : X & INT_MAX into X (X & INT_MIN) ? X | INT_MIN : X into X (X & INT_MIN) ? X : X | INT_MIN into X | INT_MIN git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224669 91177308-0d34-0410-b5e6-96231b3b80d8
162 lines
3.9 KiB
LLVM
162 lines
3.9 KiB
LLVM
; RUN: opt < %s -instsimplify -S | FileCheck %s
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define i32 @test1(i32 %x) {
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%and = and i32 %x, 1
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%cmp = icmp eq i32 %and, 0
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%and1 = and i32 %x, -2
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%and1.x = select i1 %cmp, i32 %and1, i32 %x
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ret i32 %and1.x
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; CHECK-LABEL: @test1(
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; CHECK: ret i32 %x
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}
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define i32 @test2(i32 %x) {
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%and = and i32 %x, 1
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%cmp = icmp ne i32 %and, 0
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%and1 = and i32 %x, -2
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%and1.x = select i1 %cmp, i32 %x, i32 %and1
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ret i32 %and1.x
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; CHECK-LABEL: @test2(
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; CHECK: ret i32 %x
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}
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define i32 @test3(i32 %x) {
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%and = and i32 %x, 1
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%cmp = icmp ne i32 %and, 0
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%and1 = and i32 %x, -2
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%and1.x = select i1 %cmp, i32 %and1, i32 %x
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ret i32 %and1.x
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; CHECK-LABEL: @test3(
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; CHECK: %[[and:.*]] = and i32 %x, -2
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; CHECK: ret i32 %[[and]]
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}
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define i32 @test4(i32 %X) {
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%cmp = icmp slt i32 %X, 0
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%or = or i32 %X, -2147483648
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%cond = select i1 %cmp, i32 %X, i32 %or
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ret i32 %cond
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; CHECK-LABEL: @test4
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; CHECK: %[[or:.*]] = or i32 %X, -2147483648
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; CHECK: ret i32 %[[or]]
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}
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define i32 @test5(i32 %X) {
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%cmp = icmp slt i32 %X, 0
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%or = or i32 %X, -2147483648
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%cond = select i1 %cmp, i32 %or, i32 %X
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ret i32 %cond
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; CHECK-LABEL: @test5
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; CHECK: ret i32 %X
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}
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define i32 @test6(i32 %X) {
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%cmp = icmp slt i32 %X, 0
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%and = and i32 %X, 2147483647
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%cond = select i1 %cmp, i32 %and, i32 %X
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ret i32 %cond
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; CHECK-LABEL: @test6
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; CHECK: %[[and:.*]] = and i32 %X, 2147483647
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; CHECK: ret i32 %[[and]]
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}
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define i32 @test7(i32 %X) {
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%cmp = icmp slt i32 %X, 0
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%and = and i32 %X, 2147483647
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%cond = select i1 %cmp, i32 %X, i32 %and
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ret i32 %cond
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; CHECK-LABEL: @test7
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; CHECK: ret i32 %X
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}
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define i32 @test8(i32 %X) {
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%cmp = icmp sgt i32 %X, -1
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%or = or i32 %X, -2147483648
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%cond = select i1 %cmp, i32 %X, i32 %or
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ret i32 %cond
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; CHECK-LABEL: @test8
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; CHECK: ret i32 %X
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}
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define i32 @test9(i32 %X) {
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%cmp = icmp sgt i32 %X, -1
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%or = or i32 %X, -2147483648
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%cond = select i1 %cmp, i32 %or, i32 %X
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ret i32 %cond
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; CHECK-LABEL: @test9
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; CHECK: %[[or:.*]] = or i32 %X, -2147483648
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; CHECK: ret i32 %[[or]]
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}
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define i32 @test10(i32 %X) {
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%cmp = icmp sgt i32 %X, -1
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%and = and i32 %X, 2147483647
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%cond = select i1 %cmp, i32 %and, i32 %X
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ret i32 %cond
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; CHECK-LABEL: @test10
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; CHECK: ret i32 %X
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}
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define i32 @test11(i32 %X) {
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%cmp = icmp sgt i32 %X, -1
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%and = and i32 %X, 2147483647
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%cond = select i1 %cmp, i32 %X, i32 %and
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ret i32 %cond
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; CHECK-LABEL: @test11
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; CHECK: %[[and:.*]] = and i32 %X, 2147483647
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; CHECK: ret i32 %[[and]]
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}
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; CHECK-LABEL: @select_icmp_and_8_eq_0_or_8(
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; CHECK-NEXT: [[OR:%[a-z0-9]+]] = or i32 %x, 8
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; CHECK-NEXT: ret i32 [[OR]]
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define i32 @select_icmp_and_8_eq_0_or_8(i32 %x) {
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%and = and i32 %x, 8
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%cmp = icmp eq i32 %and, 0
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%or = or i32 %x, 8
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%or.x = select i1 %cmp, i32 %or, i32 %x
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ret i32 %or.x
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}
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; CHECK-LABEL: @select_icmp_and_8_ne_0_and_not_8(
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; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 %x, -9
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; CHECK-NEXT: ret i32 [[AND]]
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define i32 @select_icmp_and_8_ne_0_and_not_8(i32 %x) {
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%and = and i32 %x, 8
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%cmp = icmp eq i32 %and, 0
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%and1 = and i32 %x, -9
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%x.and1 = select i1 %cmp, i32 %x, i32 %and1
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ret i32 %x.and1
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}
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; CHECK-LABEL: @select_icmp_and_8_eq_0_and_not_8(
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; CHECK-NEXT: ret i32 %x
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define i32 @select_icmp_and_8_eq_0_and_not_8(i32 %x) {
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%and = and i32 %x, 8
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%cmp = icmp eq i32 %and, 0
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%and1 = and i32 %x, -9
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%and1.x = select i1 %cmp, i32 %and1, i32 %x
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ret i32 %and1.x
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}
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; CHECK-LABEL: @select_icmp_x_and_8_eq_0_y_and_not_8(
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; CHECK: select i1 %cmp, i64 %y, i64 %and1
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define i64 @select_icmp_x_and_8_eq_0_y_and_not_8(i32 %x, i64 %y) {
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%and = and i32 %x, 8
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%cmp = icmp eq i32 %and, 0
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%and1 = and i64 %y, -9
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%y.and1 = select i1 %cmp, i64 %y, i64 %and1
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ret i64 %y.and1
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}
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; CHECK-LABEL: @select_icmp_x_and_8_ne_0_y_and_not_8(
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; CHECK: select i1 %cmp, i64 %and1, i64 %y
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define i64 @select_icmp_x_and_8_ne_0_y_and_not_8(i32 %x, i64 %y) {
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%and = and i32 %x, 8
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%cmp = icmp eq i32 %and, 0
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%and1 = and i64 %y, -9
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%and1.y = select i1 %cmp, i64 %and1, i64 %y
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ret i64 %and1.y
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}
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