| Eli Friedman | 2a01946 | 2011-07-13 21:29:53 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=x86-64 < %s -disable-fp-elim | FileCheck %s |
| 2 | |
| 3 | ; This test is checking that we don't crash and we don't incorrectly fold |
| 4 | ; a large displacement and a frame index into a single lea. |
| 5 | ; <rdar://problem/9763308> |
| 6 | |
| 7 | declare void @bar([39 x i8]*) |
| 8 | define i32 @f(i64 %a, i64 %b) nounwind readnone { |
| 9 | entry: |
| 10 | %stack_main = alloca [39 x i8] |
| 11 | call void @bar([39 x i8]* %stack_main) |
| 12 | %tmp6 = add i64 %a, -2147483647 |
| 13 | %.sum = add i64 %tmp6, %b |
| 14 | %tmp8 = getelementptr inbounds [39 x i8]* %stack_main, i64 0, i64 %.sum |
| 15 | %tmp9 = load i8* %tmp8, align 1 |
| 16 | %tmp10 = sext i8 %tmp9 to i32 |
| 17 | ret i32 %tmp10 |
| 18 | } |
| 19 | ; CHECK: f: |
| 20 | ; CHECK: movsbl -2147483647 |