1 ; REQUIRES: asserts 2 ; RUN: llc -mcpu=haswell < %s -stats -O2 2>&1 | grep "4 machine-licm.*hoisted" 3 ; For test: 4 ; 2 invariant loads, 1 for OBJC_SELECTOR_REFERENCES_ 5 ; and 1 for objc_msgSend from the GOT 6 ; For test_multi_def: 7 ; 2 invariant load (full multiply, both loads should be hoisted.) 8 9 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 10 target triple = "x86_64-apple-macosx10.7.2" 11 12 @"\01L_OBJC_METH_VAR_NAME_" = internal global [4 x i8] c"foo\00", section "__TEXT,__objc_methname,cstring_literals", align 1 13 @"\01L_OBJC_SELECTOR_REFERENCES_" = internal global i8* getelementptr inbounds ([4 x i8], [4 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i64 0, i64 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip" 14 @"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] [i32 0, i32 16], section "__DATA, __objc_imageinfo, regular, no_dead_strip" 15 @llvm.used = appending global [3 x i8*] [i8* getelementptr inbounds ([4 x i8], [4 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* bitcast (i8** @"\01L_OBJC_SELECTOR_REFERENCES_" to i8*), i8* bitcast ([2 x i32]* @"\01L_OBJC_IMAGE_INFO" to i8*)], section "llvm.metadata" 16 17 define void @test(i8* %x) uwtable ssp { 18 entry: 19 br label %for.body 20 21 for.body: ; preds = %for.body, %entry 22 %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 23 %0 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8, !invariant.load !0 24 %call = tail call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(i8* %x, i8* %0) 25 %inc = add i32 %i.01, 1 26 %exitcond = icmp eq i32 %inc, 10000 27 br i1 %exitcond, label %for.end, label %for.body 28 29 for.end: ; preds = %for.body 30 ret void 31 } 32 33 declare i8* @objc_msgSend(i8*, i8*, ...) nonlazybind 34 35 define void @test_multi_def(i64* dereferenceable(8) %x1, 36 i64* dereferenceable(8) %x2, 37 i128* %y, i64 %count) nounwind { 38 entry: 39 br label %for.body 40 41 for.check: 42 %inc = add nsw i64 %i, 1 43 %done = icmp sge i64 %inc, %count 44 br i1 %done, label %exit, label %for.body 45 46 for.body: 47 %i = phi i64 [ 0, %entry ], [ %inc, %for.check ] 48 %x1_load = load i64, i64* %x1, align 8, !invariant.load !0 49 %x1_zext = zext i64 %x1_load to i128 50 %x2_load = load i64, i64* %x2, align 8, !invariant.load !0 51 %x2_zext = zext i64 %x2_load to i128 52 %x_prod = mul i128 %x1_zext, %x2_zext 53 %y_elem = getelementptr inbounds i128, i128* %y, i64 %i 54 %y_load = load i128, i128* %y_elem, align 8 55 %y_plus = add i128 %x_prod, %y_load 56 store i128 %y_plus, i128* %y_elem, align 8 57 br label %for.check 58 59 exit: 60 ret void 61 } 62 63 !0 = !{} 64
