| Dan Gohman | 0bf3ae8 | 2016-01-22 03:57:34 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -asm-verbose=false | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 4 | target triple = "x86_64-unknown-linux-gnu" |
| 5 | |
| 6 | ; Test that a constant consisting of a global symbol with a negative offset |
| 7 | ; is properly folded and isel'd. |
| 8 | |
| 9 | ; CHECK-LABEL: negative_offset: |
| 10 | ; CHECK: movl $G, %eax |
| 11 | ; CHECK: notq %rax |
| 12 | ; CHECK: addq %rdi, %rax |
| 13 | ; CHECK: retq |
| 14 | @G = external global [8 x i32] |
| 15 | define i8* @negative_offset(i8* %a) { |
| 16 | %t = getelementptr i8, i8* %a, i64 sub (i64 -1, i64 ptrtoint ([8 x i32]* @G to i64)) |
| 17 | ret i8* %t |
| 18 | } |