| Dan Gohman | 36a0947 | 2009-09-08 23:54:48 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=x86-64 | FileCheck %s |
| Tanya Lattner | 33eefff | 2008-02-21 07:42:26 +0000 | [diff] [blame] | 2 | |
| Chris Lattner | 8047d76 | 2009-09-08 22:38:46 +0000 | [diff] [blame] | 3 | define i32 @test1(i32 %x) nounwind { |
| 4 | %tmp1 = shl i32 %x, 3 |
| 5 | %tmp2 = add i32 %tmp1, 7 |
| Tanya Lattner | 33eefff | 2008-02-21 07:42:26 +0000 | [diff] [blame] | 6 | ret i32 %tmp2 |
| Chris Lattner | 8047d76 | 2009-09-08 22:38:46 +0000 | [diff] [blame] | 7 | ; CHECK: test1: |
| 8 | ; CHECK: leal 7(,%rdi,8), %eax |
| Evan Cheng | dc7dd97 | 2006-05-30 06:53:55 +0000 | [diff] [blame] | 9 | } |
| Tanya Lattner | 33eefff | 2008-02-21 07:42:26 +0000 | [diff] [blame] | 10 | |
| Chris Lattner | 8047d76 | 2009-09-08 22:38:46 +0000 | [diff] [blame] | 11 | |
| 12 | ; ISel the add of -4 with a neg and use an lea for the rest of the |
| 13 | ; arithemtic. |
| 14 | define i32 @test2(i32 %x_offs) nounwind readnone { |
| 15 | entry: |
| 16 | %t0 = icmp sgt i32 %x_offs, 4 |
| 17 | br i1 %t0, label %bb.nph, label %bb2 |
| 18 | |
| 19 | bb.nph: |
| 20 | %tmp = add i32 %x_offs, -5 |
| 21 | %tmp6 = lshr i32 %tmp, 2 |
| 22 | %tmp7 = mul i32 %tmp6, -4 |
| 23 | %tmp8 = add i32 %tmp7, %x_offs |
| 24 | %tmp9 = add i32 %tmp8, -4 |
| 25 | ret i32 %tmp9 |
| 26 | |
| 27 | bb2: |
| 28 | ret i32 %x_offs |
| 29 | ; CHECK: test2: |
| 30 | ; CHECK: leal -5(%rdi), %eax |
| Chris Lattner | d842962 | 2009-09-08 23:05:44 +0000 | [diff] [blame] | 31 | ; CHECK: andl $-4, %eax |
| Chris Lattner | 8047d76 | 2009-09-08 22:38:46 +0000 | [diff] [blame] | 32 | ; CHECK: negl %eax |
| 33 | ; CHECK: leal -4(%rdi,%rax), %eax |
| 34 | } |