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| author | Nico Weber <nicolasweber@gmx.de> | 2019-08-13 17:37:09 +0000 |
|---|---|---|
| committer | Nico Weber <nicolasweber@gmx.de> | 2019-08-13 17:37:09 +0000 |
| commit | 2346b92f2bff05ef9d83706787bd38e32e0079c5 (patch) | |
| tree | add08375491d424b3609e62e43b487ae6581564f /clang/test/Driver/frame-pointer-elim.c | |
| parent | 64517a6419ca7f7b4f349f512c7cc65c30dae2bf (diff) | |
| download | bcm5719-llvm-2346b92f2bff05ef9d83706787bd38e32e0079c5.tar.gz bcm5719-llvm-2346b92f2bff05ef9d83706787bd38e32e0079c5.zip | |
clang: Don't warn on unused momit-leaf-frame-pointer when frame pointers are off.
This fixes a regression from r365860: As that commit message
states, there are 3 valid states targeted by the combination of
-f(no-)omit-frame-pointer and -m(no-)omit-leaf-frame-pointer.
After r365860 it's impossible to get from state 10 (omit just
leaf frame pointers) to state 11 (omit all frame pointers)
in a single command line without getting a warning.
This change restores that functionality.
Fixes PR42966.
Differential Revision: https://reviews.llvm.org/D66142
llvm-svn: 368728
Diffstat (limited to 'clang/test/Driver/frame-pointer-elim.c')
| -rw-r--r-- | clang/test/Driver/frame-pointer-elim.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/clang/test/Driver/frame-pointer-elim.c b/clang/test/Driver/frame-pointer-elim.c index 6bb8da67da7..099df7175f6 100644 --- a/clang/test/Driver/frame-pointer-elim.c +++ b/clang/test/Driver/frame-pointer-elim.c @@ -1,5 +1,8 @@ +// KEEP-ALL-NOT: warning: // KEEP-ALL: "-mframe-pointer=all" +// KEEP-NON-LEAF-NOT: warning: // KEEP-NON-LEAF: "-mframe-pointer=non-leaf" +// KEEP-NONE-NOT: warning: // KEEP-NONE: "-mframe-pointer=none" // On Linux x86, omit frame pointer when optimization is enabled. @@ -25,6 +28,13 @@ // RUN: %clang -### -target i386-linux -S -O1 -momit-leaf-frame-pointer %s 2>&1 | \ // RUN: FileCheck --check-prefix=KEEP-NONE %s +// fno-omit-frame-pointer -momit-leaf-frame-pointer can be overwritten by +// fomit-frame-pointer later on the command without warning +// RUN: %clang -### -target i386-linux -S -O1 -fno-omit-frame-pointer -momit-leaf-frame-pointer -fomit-frame-pointer %s 2>&1 | \ +// RUN: FileCheck --check-prefix=KEEP-NONE %s + +// RUN: %clang -### -target i386-linux -S -O1 -fno-omit-frame-pointer -momit-leaf-frame-pointer %s 2>&1 | \ +// RUN: FileCheck --check-prefix=KEEP-NON-LEAF %s // Explicit or default -fomit-frame-pointer wins over -mno-omit-leaf-frame-pointer. // RUN: %clang -### -target i386 -S %s -fomit-frame-pointer -mno-omit-leaf-frame-pointer 2>&1 | \ // RUN: FileCheck --check-prefix=KEEP-NONE %s |
