1 ; Test that the toascii library call simplifier works correctly.
3 ; RUN: opt < %s -instcombine -S | FileCheck %s
5 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
7 declare i32 @toascii(i32)
9 ; Check isascii(c) -> c & 0x7f.
11 define i32 @test_simplify1() {
12 ; CHECK-LABEL: @test_simplify1(
13 %ret = call i32 @toascii(i32 0)
15 ; CHECK-NEXT: ret i32 0
18 define i32 @test_simplify2() {
19 ; CHECK-LABEL: @test_simplify2(
20 %ret = call i32 @toascii(i32 1)
22 ; CHECK-NEXT: ret i32 1
25 define i32 @test_simplify3() {
26 ; CHECK-LABEL: @test_simplify3(
27 %ret = call i32 @toascii(i32 127)
29 ; CHECK-NEXT: ret i32 127
32 define i32 @test_simplify4() {
33 ; CHECK-LABEL: @test_simplify4(
34 %ret = call i32 @toascii(i32 128)
36 ; CHECK-NEXT: ret i32 0
39 define i32 @test_simplify5() {
40 ; CHECK-LABEL: @test_simplify5(
41 %ret = call i32 @toascii(i32 255)
43 ; CHECK-NEXT: ret i32 127
46 define i32 @test_simplify6() {
47 ; CHECK-LABEL: @test_simplify6(
48 %ret = call i32 @toascii(i32 256)
50 ; CHECK-NEXT: ret i32 0
53 define i32 @test_simplify7(i32 %x) {
54 ; CHECK-LABEL: @test_simplify7(
55 %ret = call i32 @toascii(i32 %x)
56 ; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 %x, 127
58 ; CHECK-NEXT: ret i32 [[AND]]