change the objectsize intrinsic signature: add a 3rd parameter to denote the maximum runtime performance penalty that the user is willing to accept.

This commit only adds the parameter. Code taking advantage of it will follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156473 91177308-0d34-0410-b5e6-96231b3b80d8

7 files changed, 31 insertions, 15 deletions

diff --git a/test/CodeGen/ARM/divmod.ll b/test/CodeGen/ARM/divmod.ll
index 49c4103757..d5b2d05b40 100644
--- a/test/CodeGen/ARM/divmod.ll
+++ b/test/CodeGen/ARM/divmod.ll
@@ -43,7 +43,7 @@ bb:
   %3 = load i32* @tabsize, align 4
   %4 = srem i32 %cols, %3
   %5 = sdiv i32 %cols, %3
-  %6 = tail call i32 @llvm.objectsize.i32(i8* null, i1 false)
+  %6 = tail call i32 @llvm.objectsize.i32(i8* null, i1 false, i32 0)
   %7 = tail call i8* @__memset_chk(i8* null, i32 9, i32 %5, i32 %6) nounwind
   br label %bb1
 
@@ -54,5 +54,5 @@ bb1:
   ret void
 }
 
-declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readnone
+declare i32 @llvm.objectsize.i32(i8*, i1, i32) nounwind readnone
 declare i8* @__memset_chk(i8*, i32, i32, i32) nounwind
diff --git a/test/CodeGen/Generic/crash.ll b/test/CodeGen/Generic/crash.ll
index d889389b7c..805d0ccd86 100644
--- a/test/CodeGen/Generic/crash.ll
+++ b/test/CodeGen/Generic/crash.ll
@@ -23,7 +23,7 @@ bb32:                                             ; preds = %bb6
 %3 = load double* %1, align 4
 %4 = load double* %0, align 4
 call void @Parse_Vector(double* %0) nounwind
-%5 = call i32 @llvm.objectsize.i32(i8* undef, i1 false)
+%5 = call i32 @llvm.objectsize.i32(i8* undef, i1 false, i32 0)
 %6 = icmp eq i32 %5, -1
 br i1 %6, label %bb34, label %bb33
 
@@ -36,7 +36,7 @@ unreachable
 }
 
 declare void @Parse_Vector(double*)
-declare i32 @llvm.objectsize.i32(i8*, i1)
+declare i32 @llvm.objectsize.i32(i8*, i1, i32)
 
 
 ; PR9578
diff --git a/test/CodeGen/Generic/objectsize-upgrade.ll b/test/CodeGen/Generic/objectsize-upgrade.ll
new file mode 100644
index 0000000000..8ed80473f7
--- /dev/null
+++ b/test/CodeGen/Generic/objectsize-upgrade.ll
@@ -0,0 +1,16 @@
+; RUN: opt < %s -verify -S | FileCheck %s
+; check automatic upgrade of objectsize. To be removed in LLVM 3.3.
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+
+define i32 @foo() nounwind {
+; CHECK: @foo
+  %1 = alloca i8, align 4
+  %2 = getelementptr inbounds i8* %1, i32 0
+; CHECK: llvm.objectsize.i32(i8* %2, i1 false, i32 0)
+  %3 = call i32 @llvm.objectsize.i32(i8* %2, i1 0)
+  ret i32 %3
+}
+
+; CHECK: @llvm.objectsize.i32(i8*, i1, i32)
+declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readonly
diff --git a/test/CodeGen/X86/2011-05-26-UnreachableBlockElim.ll b/test/CodeGen/X86/2011-05-26-UnreachableBlockElim.ll
index 0f18f0969b..7cd7be8838 100644
--- a/test/CodeGen/X86/2011-05-26-UnreachableBlockElim.ll
+++ b/test/CodeGen/X86/2011-05-26-UnreachableBlockElim.ll
@@ -8,7 +8,7 @@ target triple = "x86_64-apple-macosx10.6.0"
 
 @aux_temp = external global %struct.dfa, align 8
 
-declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readnone
+declare i64 @llvm.objectsize.i64(i8*, i1, i32) nounwind readnone
 
 declare void @__memset_chk() nounwind
 
@@ -21,12 +21,12 @@ if.end.i:                                         ; preds = %entry
   br i1 undef, label %land.end.thread.i, label %land.end.i
 
 land.end.thread.i:                                ; preds = %if.end.i
-  %0 = call i64 @llvm.objectsize.i64(i8* undef, i1 false) nounwind
+  %0 = call i64 @llvm.objectsize.i64(i8* undef, i1 false, i32 0) nounwind
   %cmp1710.i = icmp eq i64 %0, -1
   br i1 %cmp1710.i, label %cond.false156.i, label %cond.true138.i
 
 land.end.i:                                       ; preds = %if.end.i
-  %1 = call i64 @llvm.objectsize.i64(i8* undef, i1 false) nounwind
+  %1 = call i64 @llvm.objectsize.i64(i8* undef, i1 false, i32 0) nounwind
   %cmp17.i = icmp eq i64 %1, -1
   br i1 %cmp17.i, label %cond.false156.i, label %cond.true138.i
 
diff --git a/test/CodeGen/X86/crash.ll b/test/CodeGen/X86/crash.ll
index cf6e27d159..35f6ec50bc 100644
--- a/test/CodeGen/X86/crash.ll
+++ b/test/CodeGen/X86/crash.ll
@@ -203,7 +203,7 @@ entry:
 ; <rdar://problem/9187792>
 define fastcc void @func_61() nounwind sspreq {
 entry:
-  %t1 = tail call i64 @llvm.objectsize.i64(i8* undef, i1 false)
+  %t1 = tail call i64 @llvm.objectsize.i64(i8* undef, i1 false, i32 0)
   %t2 = icmp eq i64 %t1, -1
   br i1 %t2, label %bb2, label %bb1
 
@@ -214,7 +214,7 @@ bb2:
   ret void
 }
 
-declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readnone
+declare i64 @llvm.objectsize.i64(i8*, i1, i32) nounwind readnone
 
 ; PR10277
 ; This test has dead code elimination caused by remat during spilling.
diff --git a/test/CodeGen/X86/object-size.ll b/test/CodeGen/X86/object-size.ll
index 8f1eabde74..5120b4caee 100644
--- a/test/CodeGen/X86/object-size.ll
+++ b/test/CodeGen/X86/object-size.ll
@@ -10,7 +10,7 @@ target triple = "x86_64-apple-darwin10.0"
 define void @bar() nounwind ssp {
 entry:
   %tmp = load i8** @p                             ; <i8*> [#uses=1]
-  %0 = call i64 @llvm.objectsize.i64(i8* %tmp, i1 0) ; <i64> [#uses=1]
+  %0 = call i64 @llvm.objectsize.i64(i8* %tmp, i1 0, i32 0) ; <i64> [#uses=1]
   %cmp = icmp ne i64 %0, -1                       ; <i1> [#uses=1]
 ; X64: movabsq $-1, [[RAX:%r..]]
 ; X64: cmpq    $-1, [[RAX]]
@@ -19,7 +19,7 @@ entry:
 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, i1 1) ; <i64> [#uses=1]
+  %1 = call i64 @llvm.objectsize.i64(i8* %tmp2, i1 1, i32 0) ; <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
 
@@ -33,7 +33,7 @@ cond.end:                                         ; preds = %cond.false, %cond.t
   ret void
 }
 
-declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly
+declare i64 @llvm.objectsize.i64(i8*, i1, i32) nounwind readonly
 
 declare i8* @__strcpy_chk(i8*, i8*, i64) ssp
 
@@ -47,7 +47,7 @@ entry:
   %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, i1 1) ; <i64> [#uses=1]
+  %0 = call i64 @llvm.objectsize.i64(i8* %tmp2, i1 1, i32 0) ; <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]
diff --git a/test/CodeGen/X86/unreachable-stack-protector.ll b/test/CodeGen/X86/unreachable-stack-protector.ll
index b066297ff1..cc34b9a604 100644
--- a/test/CodeGen/X86/unreachable-stack-protector.ll
+++ b/test/CodeGen/X86/unreachable-stack-protector.ll
@@ -2,13 +2,13 @@
 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-darwin10.0.0"
 
-declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readnone
+declare i64 @llvm.objectsize.i64(i8*, i1, i32) nounwind readnone
 
 define void @test5() nounwind optsize noinline ssp {
 entry:
 ; CHECK: movq ___stack_chk_guard@GOTPCREL(%rip)
   %buf = alloca [64 x i8], align 16
-  %0 = call i64 @llvm.objectsize.i64(i8* undef, i1 false)
+  %0 = call i64 @llvm.objectsize.i64(i8* undef, i1 false, i32 0)
   br i1 false, label %if.end, label %if.then
 
 if.then:                                          ; preds = %entry