1*9880d681SAndroid Build Coastguard Worker; Test that the isascii library call simplifier works correctly. 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workertarget 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" 6*9880d681SAndroid Build Coastguard Worker 7*9880d681SAndroid Build Coastguard Workerdeclare i32 @isascii(i32) 8*9880d681SAndroid Build Coastguard Worker 9*9880d681SAndroid Build Coastguard Worker; Check isascii(c) -> c <u 128. 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Workerdefine i32 @test_simplify1() { 12*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test_simplify1( 13*9880d681SAndroid Build Coastguard Worker %ret = call i32 @isascii(i32 127) 14*9880d681SAndroid Build Coastguard Worker ret i32 %ret 15*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret i32 1 16*9880d681SAndroid Build Coastguard Worker} 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Workerdefine i32 @test_simplify2() { 19*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test_simplify2( 20*9880d681SAndroid Build Coastguard Worker %ret = call i32 @isascii(i32 128) 21*9880d681SAndroid Build Coastguard Worker ret i32 %ret 22*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret i32 0 23*9880d681SAndroid Build Coastguard Worker} 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Workerdefine i32 @test_simplify3(i32 %x) { 26*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test_simplify3( 27*9880d681SAndroid Build Coastguard Worker %ret = call i32 @isascii(i32 %x) 28*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ult i32 %x, 128 29*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[ZEXT:%[a-z0-9]+]] = zext i1 [[CMP]] to i32 30*9880d681SAndroid Build Coastguard Worker ret i32 %ret 31*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret i32 [[ZEXT]] 32*9880d681SAndroid Build Coastguard Worker} 33