From PR9121 gcc defaulted to omitting the frame pointer on linux,
however, it doesn't do that unless we're optimizing. Change
that and haul out to a helper function. Also make this a driver
test appropriate rather than an assembly test.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178606 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/frame-pointer-elim.c b/test/CodeGen/frame-pointer-elim.c
index b105a19..286cd6e 100644
--- a/test/CodeGen/frame-pointer-elim.c
+++ b/test/CodeGen/frame-pointer-elim.c
@@ -1,40 +1,30 @@
-// REQUIRES: x86-registered-target
+// For these next two tests when optimized we should omit the leaf frame
+// pointer, for unoptimized we should have a leaf frame pointer.
+// RUN: %clang -### -target i386-pc-linux-gnu -S -O1 %s 2>&1 | \
+// RUN: FileCheck --check-prefix=LINUX-OPT %s
+// LINUX-OPT: "-momit-leaf-frame-pointer"
-// RUN: %clang -target i386-apple-darwin -S -o - %s | \
-// RUN: FileCheck --check-prefix=DARWIN %s
-// DARWIN: f0:
-// DARWIN: pushl %ebp
-// DARWIN: ret
-// DARWIN: f1:
-// DARWIN: pushl %ebp
-// DARWIN: ret
-
-// RUN: %clang -target i386-pc-linux-gnu -S -o - %s | \
+// RUN: %clang -### -target i386-pc-linux-gnu -S %s 2>&1 | \
// RUN: FileCheck --check-prefix=LINUX %s
-// LINUX: f0:
-// LINUX-NOT: pushl %ebp
-// LINUX: ret
-// LINUX: f1:
-// LINUX: pushl %ebp
-// LINUX: ret
+// LINUX-NOT: "-momit-leaf-frame-pointer"
-// RUN: %clang -target i386-darwin -S -o - -fomit-frame-pointer %s | \
+// Darwin disables omitting the leaf frame pointer even under optimization
+// unless the command lines are given.
+// RUN: %clang -### -target i386-apple-darwin -S %s 2>&1 | \
+// RUN: FileCheck --check-prefix=DARWIN %s
+// DARWIN: "-mdisable-fp-elim"
+
+// RUN: %clang -### -target i386-apple-darwin -S -O1 %s 2>&1 | \
+// RUN: FileCheck --check-prefix=DARWIN-OPT %s
+// DARWIN-OPT-NOT: "-momit-leaf-frame-pointer"
+
+// RUN: %clang -### -target i386-darwin -S -fomit-frame-pointer %s 2>&1 | \
// RUN: FileCheck --check-prefix=OMIT_ALL %s
-// OMIT_ALL: f0:
-// OMIT_ALL-NOT: pushl %ebp
-// OMIT_ALL: ret
-// OMIT_ALL: f1:
-// OMIT_ALL-NOT: pushl %ebp
-// OMIT_ALL: ret
+// OMIT_ALL-NOT: "-mdisable-fp-elim"
-// RUN: %clang -target i386-darwin -S -o - -momit-leaf-frame-pointer %s | \
+// RUN: %clang -### -target i386-darwin -S -momit-leaf-frame-pointer %s 2>&1 | \
// RUN: FileCheck --check-prefix=OMIT_LEAF %s
-// OMIT_LEAF: f0:
-// OMIT_LEAF-NOT: pushl %ebp
-// OMIT_LEAF: ret
-// OMIT_LEAF: f1:
-// OMIT_LEAF: pushl %ebp
-// OMIT_LEAF: ret
+// OMIT_LEAF: "-momit-leaf-frame-pointer"
void f0() {}
void f1() { f0(); }