Author: maskray
Date: Thu Jul 11 19:14:08 2019
New Revision: 365862
URL: http://llvm.org/viewvc/llvm-project?rev=365862&view=rev
Log:
[PowerPC] Default to -fomit-frame-pointer when optimization is enabled
NetBSD, Linux, CloudABI and Hurd already omit frame pointer for PowerPC.
Make it do so for other platforms.
Modified:
cfe/trunk/lib/Driver/ToolChains/Clang.cpp
cfe/trunk/test/Driver/frame-pointer-elim.c
Modified: cfe/trunk/lib/Driver/ToolChains/Clang.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Clang.cpp?rev=365862&r1=365861&r2=365862&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Clang.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Clang.cpp Thu Jul 11 19:14:08 2019
@@ -528,6 +528,9 @@ static bool useFramePointerForTargetByDe
// XCore never wants frame pointers, regardless of OS.
// WebAssembly never wants frame pointers.
return false;
+ case llvm::Triple::ppc:
+ case llvm::Triple::ppc64:
+ case llvm::Triple::ppc64le:
case llvm::Triple::riscv32:
case llvm::Triple::riscv64:
return !areOptimizationsEnabled(Args);
@@ -547,9 +550,6 @@ static bool useFramePointerForTargetByDe
case llvm::Triple::mips64el:
case llvm::Triple::mips:
case llvm::Triple::mipsel:
- case llvm::Triple::ppc:
- case llvm::Triple::ppc64:
- case llvm::Triple::ppc64le:
case llvm::Triple::systemz:
case llvm::Triple::x86:
case llvm::Triple::x86_64:
Modified: cfe/trunk/test/Driver/frame-pointer-elim.c
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/frame-pointer-elim.c?rev=365862&r1=365861&r2=365862&view=diff
==============================================================================
--- cfe/trunk/test/Driver/frame-pointer-elim.c (original)
+++ cfe/trunk/test/Driver/frame-pointer-elim.c Thu Jul 11 19:14:08 2019
@@ -94,5 +94,10 @@
// RUN: %clang -### -target x86_64-scei-ps4 -S -O2 %s 2>&1 | \
// RUN: FileCheck --check-prefix=KEEP-NON-LEAF %s
+// RUN: %clang -### -target powerpc64 -S %s 2>&1 | \
+// RUN: FileCheck --check-prefix=KEEP-ALL %s
+// RUN: %clang -### -target powerpc64 -S -O1 %s 2>&1 | \
+// RUN: FileCheck --check-prefix=KEEP-NONE %s
+
void f0() {}
void f1() { f0(); }
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