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 @foo32(i32* %ptr) { 14 %load = load i32, i32* %ptr 15 %and = and i32 %load, 31 16 %shl = shl i32 1, %and 17 %and2 = and i32 %shl, ptrtoint (i8* @bit_mask32 to i32) 18 ; CHECK: movl $bit_mask32, %eax 19 ; CHECK: btl %ecx, %eax 20 %icmp = icmp eq i32 %and2, 0 21 br i1 %icmp, label %t, label %f 22 23 t: 24 call void @f() 25 ret void 26 27 f: 28 ret void 29 } 30 31 define void @foo64(i64* %ptr) { 32 %load = load i64, i64* %ptr 33 %and = and i64 %load, 63 34 %shl = shl i64 1, %and 35 %and2 = and i64 %shl, ptrtoint (i8* @bit_mask64 to i64) 36 ; CHECK: movabsq $bit_mask64, %rax 37 ; CHECK: btq %rcx, %rax 38 %icmp = icmp eq i64 %and2, 0 39 br i1 %icmp, label %t, label %f 40 41 t: 42 call void @f() 43 ret void 44 45 f: 46 ret void 47 } 48 49 !0 = !{i64 0, i64 256} 50 !1 = !{i64 0, i64 4294967296} 51 !2 = !{i64 -1, i64 -1} 52
