1 ; RUN: llc -O0 < %s -march=x86-64 | FileCheck %s 2 3 ; ModuleID = 'ts.c' 4 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" 5 target triple = "x86_64-apple-darwin10.0" 6 7 @p = common global i8* null, align 8 ; <i8**> [#uses=4] 8 @.str = private constant [3 x i8] c"Hi\00" ; <[3 x i8]*> [#uses=1] 9 10 define void @bar() nounwind ssp { 11 entry: 12 %tmp = load i8*, i8** @p ; <i8*> [#uses=1] 13 %0 = call i64 @llvm.objectsize.i64.p0i8(i8* %tmp, i1 0) ; <i64> [#uses=1] 14 %cmp = icmp ne i64 %0, -1 ; <i1> [#uses=1] 15 ; CHECK: movq $-1, [[RAX:%r..]] 16 ; CHECK: cmpq $-1, [[RAX]] 17 br i1 %cmp, label %cond.true, label %cond.false 18 19 cond.true: ; preds = %entry 20 %tmp1 = load i8*, i8** @p ; <i8*> [#uses=1] 21 %tmp2 = load i8*, i8** @p ; <i8*> [#uses=1] 22 %1 = call i64 @llvm.objectsize.i64.p0i8(i8* %tmp2, i1 1) ; <i64> [#uses=1] 23 %call = call i8* @__strcpy_chk(i8* %tmp1, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 %1) ssp ; <i8*> [#uses=1] 24 br label %cond.end 25 26 cond.false: ; preds = %entry 27 %tmp3 = load i8*, i8** @p ; <i8*> [#uses=1] 28 %call4 = call i8* @__inline_strcpy_chk(i8* %tmp3, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0)) ssp ; <i8*> [#uses=1] 29 br label %cond.end 30 31 cond.end: ; preds = %cond.false, %cond.true 32 %cond = phi i8* [ %call, %cond.true ], [ %call4, %cond.false ] ; <i8*> [#uses=0] 33 ret void 34 } 35 36 declare i64 @llvm.objectsize.i64.p0i8(i8*, i1) nounwind readonly 37 38 declare i8* @__strcpy_chk(i8*, i8*, i64) ssp 39 40 define internal i8* @__inline_strcpy_chk(i8* %__dest, i8* %__src) nounwind ssp { 41 entry: 42 %retval = alloca i8* ; <i8**> [#uses=2] 43 %__dest.addr = alloca i8* ; <i8**> [#uses=3] 44 %__src.addr = alloca i8* ; <i8**> [#uses=2] 45 store i8* %__dest, i8** %__dest.addr 46 store i8* %__src, i8** %__src.addr 47 %tmp = load i8*, i8** %__dest.addr ; <i8*> [#uses=1] 48 %tmp1 = load i8*, i8** %__src.addr ; <i8*> [#uses=1] 49 %tmp2 = load i8*, i8** %__dest.addr ; <i8*> [#uses=1] 50 %0 = call i64 @llvm.objectsize.i64.p0i8(i8* %tmp2, i1 1) ; <i64> [#uses=1] 51 %call = call i8* @__strcpy_chk(i8* %tmp, i8* %tmp1, i64 %0) ssp ; <i8*> [#uses=1] 52 store i8* %call, i8** %retval 53 %1 = load i8*, i8** %retval ; <i8*> [#uses=1] 54 ret i8* %1 55 } 56
