| Jakob Stoklund Olesen | 2085089 | 2010-05-28 17:06:30 +0000 | [diff] [blame] | 1 | ; RUN: llc -O0 -regalloc=linearscan < %s -march=x86-64 | FileCheck %s -check-prefix=X64 |
| Mike Stump | f8a74fc | 2009-11-09 23:10:49 +0000 | [diff] [blame] | 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** @p ; <i8*> [#uses=1] |
| Eric Christopher | fdb3345 | 2009-12-23 02:51:48 +0000 | [diff] [blame] | 13 | %0 = call i64 @llvm.objectsize.i64(i8* %tmp, i1 0) ; <i64> [#uses=1] |
| Mike Stump | f8a74fc | 2009-11-09 23:10:49 +0000 | [diff] [blame] | 14 | %cmp = icmp ne i64 %0, -1 ; <i1> [#uses=1] |
| Eric Christopher | 304f13c | 2010-03-11 06:20:22 +0000 | [diff] [blame] | 15 | ; X64: movabsq $-1, %rax |
| Mike Stump | f8a74fc | 2009-11-09 23:10:49 +0000 | [diff] [blame] | 16 | ; X64: cmpq $-1, %rax |
| 17 | br i1 %cmp, label %cond.true, label %cond.false |
| 18 | |
| 19 | cond.true: ; preds = %entry |
| 20 | %tmp1 = load i8** @p ; <i8*> [#uses=1] |
| 21 | %tmp2 = load i8** @p ; <i8*> [#uses=1] |
| Eric Christopher | fdb3345 | 2009-12-23 02:51:48 +0000 | [diff] [blame] | 22 | %1 = call i64 @llvm.objectsize.i64(i8* %tmp2, i1 1) ; <i64> [#uses=1] |
| Mike Stump | f8a74fc | 2009-11-09 23:10:49 +0000 | [diff] [blame] | 23 | %call = call i8* @__strcpy_chk(i8* %tmp1, i8* getelementptr inbounds ([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** @p ; <i8*> [#uses=1] |
| 28 | %call4 = call i8* @__inline_strcpy_chk(i8* %tmp3, i8* getelementptr inbounds ([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 | |
| Eric Christopher | fdb3345 | 2009-12-23 02:51:48 +0000 | [diff] [blame] | 36 | declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly |
| Mike Stump | f8a74fc | 2009-11-09 23:10:49 +0000 | [diff] [blame] | 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** %__dest.addr ; <i8*> [#uses=1] |
| 48 | %tmp1 = load i8** %__src.addr ; <i8*> [#uses=1] |
| 49 | %tmp2 = load i8** %__dest.addr ; <i8*> [#uses=1] |
| Eric Christopher | fdb3345 | 2009-12-23 02:51:48 +0000 | [diff] [blame] | 50 | %0 = call i64 @llvm.objectsize.i64(i8* %tmp2, i1 1) ; <i64> [#uses=1] |
| Mike Stump | f8a74fc | 2009-11-09 23:10:49 +0000 | [diff] [blame] | 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** %retval ; <i8*> [#uses=1] |
| 54 | ret i8* %1 |
| 55 | } |