vendor/clang/clang-trunk-r178860

1 files changed, 30 insertions, 0 deletions

diff --git a/test/Driver/frame-pointer-elim.c b/test/Driver/frame-pointer-elim.c
new file mode 100644
index 0000000000000..286cd6e61f833
--- /dev/null
+++ b/test/Driver/frame-pointer-elim.c
@@ -0,0 +1,30 @@
+// 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-pc-linux-gnu -S %s 2>&1 | \
+// RUN:   FileCheck --check-prefix=LINUX %s
+// LINUX-NOT: "-momit-leaf-frame-pointer"
+
+// 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-NOT: "-mdisable-fp-elim"
+
+// RUN: %clang -### -target i386-darwin -S -momit-leaf-frame-pointer %s 2>&1 | \
+// RUN:   FileCheck --check-prefix=OMIT_LEAF %s
+// OMIT_LEAF: "-momit-leaf-frame-pointer"
+
+void f0() {}
+void f1() { f0(); }