From: Akira Hatanaka <ahatanaka@mips.com>
Date: Wed, 16 Oct 2013 17:13:08 +0000 (+0000)
Subject: [mips] Enable frame-pointer elimination for -O1 and above.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9e6af9ddd505e68d494cec85d83ff893cf16d2df;p=clang

[mips] Enable frame-pointer elimination for -O1 and above.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192815 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 9b23cbf931..52efc1c654 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1794,7 +1794,11 @@ static bool shouldUseFramePointer(const ArgList &Args,
   // Don't use a frame pointer on linux x86, x86_64 and z if optimizing.
   if ((Triple.getArch() == llvm::Triple::x86_64 ||
        Triple.getArch() == llvm::Triple::x86 ||
-       Triple.getArch() == llvm::Triple::systemz) &&
+       Triple.getArch() == llvm::Triple::systemz ||
+       Triple.getArch() == llvm::Triple::mips ||
+       Triple.getArch() == llvm::Triple::mipsel ||
+       Triple.getArch() == llvm::Triple::mips64 ||
+       Triple.getArch() == llvm::Triple::mips64el) &&
       Triple.isOSLinux()) {
     if (Arg *A = Args.getLastArg(options::OPT_O_Group))
       if (!A->getOption().matches(options::OPT_O0))
@@ -1816,7 +1820,11 @@ static bool shouldUseLeafFramePointer(const ArgList &Args,
   // Don't use a leaf frame pointer on linux x86, x86_64 and z if optimizing.
   if ((Triple.getArch() == llvm::Triple::x86_64 ||
        Triple.getArch() == llvm::Triple::x86 ||
-       Triple.getArch() == llvm::Triple::systemz) &&
+       Triple.getArch() == llvm::Triple::systemz ||
+       Triple.getArch() == llvm::Triple::mips ||
+       Triple.getArch() == llvm::Triple::mipsel ||
+       Triple.getArch() == llvm::Triple::mips64 ||
+       Triple.getArch() == llvm::Triple::mips64el) &&
       Triple.isOSLinux()) {
     if (Arg *A = Args.getLastArg(options::OPT_O_Group))
       if (!A->getOption().matches(options::OPT_O0))
diff --git a/test/Driver/frame-pointer.c b/test/Driver/frame-pointer.c
index 027077ca5f..1d63f2c429 100644
--- a/test/Driver/frame-pointer.c
+++ b/test/Driver/frame-pointer.c
@@ -16,6 +16,15 @@
 // RUN: %clang -target s390x-pc-linux -### -S -O0 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK0-64 %s
 // RUN: %clang -target s390x-pc-linux -### -S -O1 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK1-64 %s
 
+// RUN: %clang -target mips-linux-gnu -### -S -O0 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK0-32 %s
+// RUN: %clang -target mips-linux-gnu -### -S -O1 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK1-32 %s
+// RUN: %clang -target mipsel-linux-gnu -### -S -O0 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK0-32 %s
+// RUN: %clang -target mipsel-linux-gnu -### -S -O1 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK1-32 %s
+// RUN: %clang -target mips64-linux-gnu -### -S -O0 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK0-32 %s
+// RUN: %clang -target mips64-linux-gnu -### -S -O1 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK1-32 %s
+// RUN: %clang -target mips64el-linux-gnu -### -S -O0 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK0-32 %s
+// RUN: %clang -target mips64el-linux-gnu -### -S -O1 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK1-32 %s
+
 // CHECK0-32: -mdisable-fp-elim
 // CHECK1-32-NOT: -mdisable-fp-elim
 // CHECK2-32-NOT: -mdisable-fp-elim