| Alexey Volkov | 1328b28 | 2014-04-01 08:13:07 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=x86 -mcpu=atom | FileCheck %s |
| 2 | ; CHECK: movl |
| 3 | ; CHECK: movb |
| 4 | ; CHECK: movb |
| 5 | ; CHECK: cmpb |
| 6 | ; CHECK: notb |
| 7 | ; CHECK: notb |
| 8 | |
| 9 | ; Test for checking of cancel conversion to cmp32 in Atom case |
| 10 | ; in function 'X86TargetLowering::EmitCmp' |
| 11 | |
| 12 | define i8 @run_test(i8* %rd_p) { |
| 13 | entry: |
| 14 | %incdec.ptr = getelementptr inbounds i8* %rd_p, i64 1 |
| 15 | %ld1 = load i8* %rd_p, align 1 |
| 16 | %incdec.ptr1 = getelementptr inbounds i8* %rd_p, i64 2 |
| 17 | %ld2 = load i8* %incdec.ptr, align 1 |
| 18 | %x4 = xor i8 %ld1, -1 |
| 19 | %x5 = xor i8 %ld2, -1 |
| 20 | %cmp34 = icmp ult i8 %ld2, %ld1 |
| 21 | br i1 %cmp34, label %if.then3, label %if.else |
| 22 | |
| 23 | if.then3: |
| 24 | %sub7 = sub i8 %x4, %x5 |
| 25 | br label %if.end4 |
| 26 | |
| 27 | if.else: |
| 28 | %sub8 = sub i8 %x5, %x4 |
| 29 | br label %if.end4 |
| 30 | |
| 31 | if.end4: |
| 32 | %res = phi i8 [ %sub7, %if.then3 ], [ %sub8, %if.else ] |
| 33 | ret i8 %res |
| 34 | |
| 35 | } |
| 36 | |