| ; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s |
| |
| ; These tests would be improved by 'movs r0, #0' being rematerialized below the |
| ; test as 'mov.w r0, #0'. |
| |
| ; 0x000000bb = 187 |
| define i1 @f1(i32 %a) { |
| ; CHECK: f1: |
| ; CHECK: cmp {{.*}}, #187 |
| %tmp = icmp ne i32 %a, 187 |
| ret i1 %tmp |
| } |
| |
| ; 0x00aa00aa = 11141290 |
| define i1 @f2(i32 %a) { |
| ; CHECK: f2: |
| ; CHECK: cmp.w {{.*}}, #11141290 |
| %tmp = icmp eq i32 %a, 11141290 |
| ret i1 %tmp |
| } |
| |
| ; 0xcc00cc00 = 3422604288 |
| define i1 @f3(i32 %a) { |
| ; CHECK: f3: |
| ; CHECK: cmp.w {{.*}}, #-872363008 |
| %tmp = icmp ne i32 %a, 3422604288 |
| ret i1 %tmp |
| } |
| |
| ; 0xdddddddd = 3722304989 |
| define i1 @f4(i32 %a) { |
| ; CHECK: f4: |
| ; CHECK: cmp.w {{.*}}, #-572662307 |
| %tmp = icmp ne i32 %a, 3722304989 |
| ret i1 %tmp |
| } |
| |
| ; 0x00110000 = 1114112 |
| define i1 @f5(i32 %a) { |
| ; CHECK: f5: |
| ; CHECK: cmp.w {{.*}}, #1114112 |
| %tmp = icmp eq i32 %a, 1114112 |
| ret i1 %tmp |
| } |
| |
| ; Check that we don't do an invalid (a > b) --> !(a < b + 1) transform. |
| ; |
| ; CHECK: f6: |
| ; CHECK-NOT: cmp.w {{.*}}, #-2147483648 |
| ; CHECK: bx lr |
| define i32 @f6(i32 %a) { |
| %tmp = icmp sgt i32 %a, 2147483647 |
| br i1 %tmp, label %true, label %false |
| true: |
| ret i32 2 |
| false: |
| ret i32 0 |
| } |