1 ; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s 2 3 ; These tests would be improved by 'movs r0, #0' being rematerialized below the 4 ; test as 'mov.w r0, #0'. 5 6 ; 0x000000bb = 187 7 define i1 @f1(i32 %a) { 8 ; CHECK-LABEL: f1: 9 ; CHECK: cmp {{.*}}, #187 10 %tmp = icmp ne i32 %a, 187 11 ret i1 %tmp 12 } 13 14 ; 0x00aa00aa = 11141290 15 define i1 @f2(i32 %a) { 16 ; CHECK-LABEL: f2: 17 ; CHECK: cmp.w {{.*}}, #11141290 18 %tmp = icmp eq i32 %a, 11141290 19 ret i1 %tmp 20 } 21 22 ; 0xcc00cc00 = 3422604288 23 define i1 @f3(i32 %a) { 24 ; CHECK-LABEL: f3: 25 ; CHECK: cmp.w {{.*}}, #-872363008 26 %tmp = icmp ne i32 %a, 3422604288 27 ret i1 %tmp 28 } 29 30 ; 0xdddddddd = 3722304989 31 define i1 @f4(i32 %a) { 32 ; CHECK-LABEL: f4: 33 ; CHECK: cmp.w {{.*}}, #-572662307 34 %tmp = icmp ne i32 %a, 3722304989 35 ret i1 %tmp 36 } 37 38 ; 0x00110000 = 1114112 39 define i1 @f5(i32 %a) { 40 ; CHECK-LABEL: f5: 41 ; CHECK: cmp.w {{.*}}, #1114112 42 %tmp = icmp eq i32 %a, 1114112 43 ret i1 %tmp 44 } 45 46 ; Check that we don't do an invalid (a > b) --> !(a < b + 1) transform. 47 ; 48 ; CHECK-LABEL: f6: 49 ; CHECK-NOT: cmp.w {{.*}}, #-2147483648 50 ; CHECK: bx lr 51 define i32 @f6(i32 %a) { 52 %tmp = icmp sgt i32 %a, 2147483647 53 br i1 %tmp, label %true, label %false 54 true: 55 ret i32 2 56 false: 57 ret i32 0 58 } 59
