From 8bcc971174766c582506c8232c55cf2fba5376b6 Mon Sep 17 00:00:00 2001
From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Wed, 29 Aug 2012 15:32:21 +0000
Subject: Make MemoryBuiltins aware of TargetLibraryInfo.

This disables malloc-specific optimization when -fno-builtin (or -ffreestanding)
is specified. This has been a problem for a long time but became more severe
with the recent memory builtin improvements.

Since the memory builtin functions are used everywhere, this required passing
TLI in many places. This means that functions that now have an optional TLI
argument, like RecursivelyDeleteTriviallyDeadFunctions, won't remove dead
mallocs anymore if the TLI argument is missing. I've updated most passes to do
the right thing.

Fixes PR13694 and probably others.

llvm-svn: 162841
---
 llvm/lib/Target/TargetLibraryInfo.cpp | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Target/TargetLibraryInfo.cpp')

diff --git a/llvm/lib/Target/TargetLibraryInfo.cpp b/llvm/lib/Target/TargetLibraryInfo.cpp
index 924b1ed..62f973e 100644
--- a/llvm/lib/Target/TargetLibraryInfo.cpp
+++ b/llvm/lib/Target/TargetLibraryInfo.cpp
@@ -24,6 +24,16 @@ void TargetLibraryInfo::anchor() { }
 
 const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
   {
+    "_ZdaPv",
+    "_ZdlPv",
+    "_Znaj",
+    "_ZnajRKSt9nothrow_t",
+    "_Znam",
+    "_ZnamRKSt9nothrow_t",
+    "_Znwj",
+    "_ZnwjRKSt9nothrow_t",
+    "_Znwm",
+    "_ZnwmRKSt9nothrow_t",
     "__cxa_atexit",
     "__cxa_guard_abort",
     "__cxa_guard_acquire",
@@ -50,6 +60,7 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "atanhf",
     "atanhl",
     "atanl",
+    "calloc",
     "cbrt",
     "cbrtf",
     "cbrtl",
@@ -89,6 +100,7 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "fmodl",
     "fputc",
     "fputs",
+    "free",
     "fwrite",
     "iprintf",
     "log",
@@ -106,6 +118,7 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "logbl",
     "logf",
     "logl",
+    "malloc",
     "memchr",
     "memcmp",
     "memcpy",
@@ -115,11 +128,14 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "nearbyint",
     "nearbyintf",
     "nearbyintl",
+    "posix_memalign",
     "pow",
     "powf",
     "powl",
     "putchar",
     "puts",
+    "realloc",
+    "reallocf",
     "rint",
     "rintf",
     "rintl",
@@ -139,10 +155,12 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "strcat",
     "strchr",
     "strcpy",
+    "strdup",
     "strlen",
     "strncat",
     "strncmp",
     "strncpy",
+    "strndup",
     "strnlen",
     "tan",
     "tanf",
@@ -152,7 +170,8 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "tanl",
     "trunc",
     "truncf",
-    "truncl"
+    "truncl",
+    "valloc"
   };
 
 /// initialize - Initialize the set of available library functions based on the
-- 
cgit v1.1