1 ; Test that the toascii library call simplifier works correctly. 2 ; 3 ; RUN: opt < %s -instcombine -S | FileCheck %s 4 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" 6 7 declare i32 @toascii(i32) 8 9 ; Check isascii(c) -> c & 0x7f. 10 11 define i32 @test_simplify1() { 12 ; CHECK-LABEL: @test_simplify1( 13 %ret = call i32 @toascii(i32 0) 14 ret i32 %ret 15 ; CHECK-NEXT: ret i32 0 16 } 17 18 define i32 @test_simplify2() { 19 ; CHECK-LABEL: @test_simplify2( 20 %ret = call i32 @toascii(i32 1) 21 ret i32 %ret 22 ; CHECK-NEXT: ret i32 1 23 } 24 25 define i32 @test_simplify3() { 26 ; CHECK-LABEL: @test_simplify3( 27 %ret = call i32 @toascii(i32 127) 28 ret i32 %ret 29 ; CHECK-NEXT: ret i32 127 30 } 31 32 define i32 @test_simplify4() { 33 ; CHECK-LABEL: @test_simplify4( 34 %ret = call i32 @toascii(i32 128) 35 ret i32 %ret 36 ; CHECK-NEXT: ret i32 0 37 } 38 39 define i32 @test_simplify5() { 40 ; CHECK-LABEL: @test_simplify5( 41 %ret = call i32 @toascii(i32 255) 42 ret i32 %ret 43 ; CHECK-NEXT: ret i32 127 44 } 45 46 define i32 @test_simplify6() { 47 ; CHECK-LABEL: @test_simplify6( 48 %ret = call i32 @toascii(i32 256) 49 ret i32 %ret 50 ; CHECK-NEXT: ret i32 0 51 } 52 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 57 ret i32 %ret 58 ; CHECK-NEXT: ret i32 [[AND]] 59 } 60
