| Peter Collingbourne | 235c275 | 2016-12-08 19:01:00 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s | FileCheck %s |
| 2 | ; RUN: llc -relocation-model=pic < %s | FileCheck %s |
| 3 | |
| 4 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 5 | target triple = "x86_64-unknown-linux-gnu" |
| 6 | |
| 7 | @bit_mask8 = external hidden global i8, !absolute_symbol !0 |
| 8 | @bit_mask32 = external hidden global i8, !absolute_symbol !1 |
| 9 | @bit_mask64 = external hidden global i8, !absolute_symbol !2 |
| 10 | |
| 11 | declare void @f() |
| 12 | |
| 13 | define void @foo8(i8* %ptr) { |
| 14 | %load = load i8, i8* %ptr |
| 15 | ; CHECK: testb $bit_mask8, (%rdi) |
| 16 | %and = and i8 %load, ptrtoint (i8* @bit_mask8 to i8) |
| 17 | %icmp = icmp eq i8 %and, 0 |
| 18 | br i1 %icmp, label %t, label %f |
| 19 | |
| 20 | t: |
| 21 | call void @f() |
| 22 | ret void |
| 23 | |
| 24 | f: |
| 25 | ret void |
| 26 | } |
| 27 | |
| 28 | define void @foo32(i32* %ptr) { |
| 29 | %load = load i32, i32* %ptr |
| 30 | ; CHECK: testl $bit_mask32, (%rdi) |
| 31 | %and = and i32 %load, ptrtoint (i8* @bit_mask32 to i32) |
| 32 | %icmp = icmp eq i32 %and, 0 |
| 33 | br i1 %icmp, label %t, label %f |
| 34 | |
| 35 | t: |
| 36 | call void @f() |
| 37 | ret void |
| 38 | |
| 39 | f: |
| 40 | ret void |
| 41 | } |
| 42 | |
| 43 | define void @foo64(i64* %ptr) { |
| 44 | %load = load i64, i64* %ptr |
| 45 | ; CHECK: movabsq $bit_mask64, %rax |
| Craig Topper | c20b46d | 2017-10-01 23:53:53 +0000 | [diff] [blame] | 46 | ; CHECK: testq %rax, (%rdi) |
| Peter Collingbourne | 235c275 | 2016-12-08 19:01:00 +0000 | [diff] [blame] | 47 | %and = and i64 %load, ptrtoint (i8* @bit_mask64 to i64) |
| 48 | %icmp = icmp eq i64 %and, 0 |
| 49 | br i1 %icmp, label %t, label %f |
| 50 | |
| 51 | t: |
| 52 | call void @f() |
| 53 | ret void |
| 54 | |
| 55 | f: |
| 56 | ret void |
| 57 | } |
| 58 | |
| 59 | !0 = !{i64 0, i64 256} |
| 60 | !1 = !{i64 0, i64 4294967296} |
| 61 | !2 = !{i64 -1, i64 -1} |