1 ; Test 32-bit addition in which the second operand is constant. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 ; Check additions of 1. 6 define i32 @f1(i32 %a) { 7 ; CHECK-LABEL: f1: 8 ; CHECK: ahi %r2, 1 9 ; CHECK: br %r14 10 %add = add i32 %a, 1 11 ret i32 %add 12 } 13 14 ; Check the high end of the AHI range. 15 define i32 @f2(i32 %a) { 16 ; CHECK-LABEL: f2: 17 ; CHECK: ahi %r2, 32767 18 ; CHECK: br %r14 19 %add = add i32 %a, 32767 20 ret i32 %add 21 } 22 23 ; Check the next value up, which must use AFI instead. 24 define i32 @f3(i32 %a) { 25 ; CHECK-LABEL: f3: 26 ; CHECK: afi %r2, 32768 27 ; CHECK: br %r14 28 %add = add i32 %a, 32768 29 ret i32 %add 30 } 31 32 ; Check the high end of the signed 32-bit range. 33 define i32 @f4(i32 %a) { 34 ; CHECK-LABEL: f4: 35 ; CHECK: afi %r2, 2147483647 36 ; CHECK: br %r14 37 %add = add i32 %a, 2147483647 38 ret i32 %add 39 } 40 41 ; Check the next value up, which is treated as a negative value. 42 define i32 @f5(i32 %a) { 43 ; CHECK-LABEL: f5: 44 ; CHECK: afi %r2, -2147483648 45 ; CHECK: br %r14 46 %add = add i32 %a, 2147483648 47 ret i32 %add 48 } 49 50 ; Check the high end of the negative AHI range. 51 define i32 @f6(i32 %a) { 52 ; CHECK-LABEL: f6: 53 ; CHECK: ahi %r2, -1 54 ; CHECK: br %r14 55 %add = add i32 %a, -1 56 ret i32 %add 57 } 58 59 ; Check the low end of the AHI range. 60 define i32 @f7(i32 %a) { 61 ; CHECK-LABEL: f7: 62 ; CHECK: ahi %r2, -32768 63 ; CHECK: br %r14 64 %add = add i32 %a, -32768 65 ret i32 %add 66 } 67 68 ; Check the next value down, which must use AFI instead. 69 define i32 @f8(i32 %a) { 70 ; CHECK-LABEL: f8: 71 ; CHECK: afi %r2, -32769 72 ; CHECK: br %r14 73 %add = add i32 %a, -32769 74 ret i32 %add 75 } 76 77 ; Check the low end of the signed 32-bit range. 78 define i32 @f9(i32 %a) { 79 ; CHECK-LABEL: f9: 80 ; CHECK: afi %r2, -2147483648 81 ; CHECK: br %r14 82 %add = add i32 %a, -2147483648 83 ret i32 %add 84 } 85 86 ; Check the next value down, which is treated as a positive value. 87 define i32 @f10(i32 %a) { 88 ; CHECK-LABEL: f10: 89 ; CHECK: afi %r2, 2147483647 90 ; CHECK: br %r14 91 %add = add i32 %a, -2147483649 92 ret i32 %add 93 } 94
