| Hal Finkel | f2199b2 | 2015-10-23 20:37:08 +0000 | [diff] [blame^] | 1 | ; RUN: opt -S -instsimplify < %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "E-m:e-i64:64-n32:64" |
| 4 | target triple = "powerpc64-unknown-linux-gnu" |
| 5 | |
| 6 | define zeroext i1 @_Z10isNegativemj(i64 %Val, i32 zeroext %IntegerBitWidth) { |
| 7 | entry: |
| 8 | %conv = zext i32 %IntegerBitWidth to i64 |
| 9 | %sub = sub i64 128, %conv |
| 10 | %conv1 = trunc i64 %sub to i32 |
| 11 | %conv2 = zext i64 %Val to i128 |
| 12 | %sh_prom = zext i32 %conv1 to i128 |
| 13 | %shl = shl i128 %conv2, %sh_prom |
| 14 | %shr = ashr i128 %shl, %sh_prom |
| 15 | %cmp = icmp slt i128 %shr, 0 |
| 16 | ret i1 %cmp |
| 17 | } |
| 18 | |
| 19 | ; CHECK-LABEL: @_Z10isNegativemj |
| 20 | ; CHECK-NOT: ret i1 false |
| 21 | ; CHECK: ret i1 %cmp |
| 22 | |