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Diffstat (limited to 'llvm/test/CodeGen/X86/object-size.ll')
-rw-r--r-- | llvm/test/CodeGen/X86/object-size.ll | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/object-size.ll b/llvm/test/CodeGen/X86/object-size.ll new file mode 100644 index 00000000000..b795e0fda8b --- /dev/null +++ b/llvm/test/CodeGen/X86/object-size.ll @@ -0,0 +1,55 @@ +; RUN: llc -O0 < %s | FileCheck %s + +; ModuleID = 'ts.c' +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" +target triple = "x86_64-apple-darwin10.0" + +@p = common global i8* null, align 8 ; <i8**> [#uses=4] +@.str = private constant [3 x i8] c"Hi\00" ; <[3 x i8]*> [#uses=1] + +define void @bar() nounwind ssp { +entry: + %tmp = load i8*, i8** @p ; <i8*> [#uses=1] + %0 = call i64 @llvm.objectsize.i64.p0i8(i8* %tmp, i1 0) ; <i64> [#uses=1] + %cmp = icmp ne i64 %0, -1 ; <i1> [#uses=1] +; CHECK: movq $-1, [[RAX:%r..]] +; CHECK: cmpq $-1, [[RAX]] + br i1 %cmp, label %cond.true, label %cond.false + +cond.true: ; preds = %entry + %tmp1 = load i8*, i8** @p ; <i8*> [#uses=1] + %tmp2 = load i8*, i8** @p ; <i8*> [#uses=1] + %1 = call i64 @llvm.objectsize.i64.p0i8(i8* %tmp2, i1 1) ; <i64> [#uses=1] + %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] + br label %cond.end + +cond.false: ; preds = %entry + %tmp3 = load i8*, i8** @p ; <i8*> [#uses=1] + %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] + br label %cond.end + +cond.end: ; preds = %cond.false, %cond.true + %cond = phi i8* [ %call, %cond.true ], [ %call4, %cond.false ] ; <i8*> [#uses=0] + ret void +} + +declare i64 @llvm.objectsize.i64.p0i8(i8*, i1) nounwind readonly + +declare i8* @__strcpy_chk(i8*, i8*, i64) ssp + +define internal i8* @__inline_strcpy_chk(i8* %__dest, i8* %__src) nounwind ssp { +entry: + %retval = alloca i8* ; <i8**> [#uses=2] + %__dest.addr = alloca i8* ; <i8**> [#uses=3] + %__src.addr = alloca i8* ; <i8**> [#uses=2] + store i8* %__dest, i8** %__dest.addr + store i8* %__src, i8** %__src.addr + %tmp = load i8*, i8** %__dest.addr ; <i8*> [#uses=1] + %tmp1 = load i8*, i8** %__src.addr ; <i8*> [#uses=1] + %tmp2 = load i8*, i8** %__dest.addr ; <i8*> [#uses=1] + %0 = call i64 @llvm.objectsize.i64.p0i8(i8* %tmp2, i1 1) ; <i64> [#uses=1] + %call = call i8* @__strcpy_chk(i8* %tmp, i8* %tmp1, i64 %0) ssp ; <i8*> [#uses=1] + store i8* %call, i8** %retval + %1 = load i8*, i8** %retval ; <i8*> [#uses=1] + ret i8* %1 +} |