Add testcase for recent checkin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86620 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/object-size.ll b/test/CodeGen/X86/object-size.ll
new file mode 100644 (file)
index 0000000..3f90245
--- /dev/null
+++ b/test/CodeGen/X86/object-size.ll
@@ -0,0 +1,55 @@
+; RUN: llc -O0 < %s -march=x86-64 | FileCheck %s -check-prefix=X64
+
+; 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** @p                             ; <i8*> [#uses=1]
+  %0 = call i64 @llvm.objectsize.i64(i8* %tmp, i32 0) ; <i64> [#uses=1]
+  %cmp = icmp ne i64 %0, -1                       ; <i1> [#uses=1]
+; X64: movq    $-1, %rax
+; X64: cmpq    $-1, %rax
+  br i1 %cmp, label %cond.true, label %cond.false
+
+cond.true:                                        ; preds = %entry
+  %tmp1 = load i8** @p                            ; <i8*> [#uses=1]
+  %tmp2 = load i8** @p                            ; <i8*> [#uses=1]
+  %1 = call i64 @llvm.objectsize.i64(i8* %tmp2, i32 1) ; <i64> [#uses=1]
+  %call = call i8* @__strcpy_chk(i8* %tmp1, i8* getelementptr inbounds ([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** @p                            ; <i8*> [#uses=1]
+  %call4 = call i8* @__inline_strcpy_chk(i8* %tmp3, i8* getelementptr inbounds ([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(i8*, i32) 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** %__dest.addr                   ; <i8*> [#uses=1]
+  %tmp1 = load i8** %__src.addr                   ; <i8*> [#uses=1]
+  %tmp2 = load i8** %__dest.addr                  ; <i8*> [#uses=1]
+  %0 = call i64 @llvm.objectsize.i64(i8* %tmp2, i32 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** %retval                          ; <i8*> [#uses=1]
+  ret i8* %1
+}