| Message ID | B393A6715F47FC43935D96EA15105EFF2ACB0F7B08@GEORGE.Emea.Arm.com |
|---|---|
| State | New |
| Headers | show |
On Oct 18, 2012, at 10:39 AM, Greta Yorsh <Greta.Yorsh@arm.com> wrote: > Ping! Thanks. > > -----Original Message----- > From: Greta Yorsh [mailto:greta.yorsh@arm.com] > Sent: 10 October 2012 15:28 > To: GCC Patches > Cc: Ramana Radhakrishnan; Richard Earnshaw; nickc@redhat.com; paul@codesourcery.com; Greta Yorsh; mikestump@comcast.net; ro@CeBiTec.Uni-Bielefeld.DE; janisjo@codesourcery.com > Subject: [PATCH, Testsuite] Add new effective target arm_prefer_ldrd_strd > > In the testsuite, distinguish between arm targets that prefer LDRD/STRD and > arm targets that prefer LDM/STM. This patch adds a new effective target test > and updates documentation accordingly. > > Ok for trunk? I'd prefer arm people made the call, but 8 days is enough of a black hole, so… Ok.
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi index 055567b..b80ee02 100644 --- a/gcc/doc/sourcebuild.texi +++ b/gcc/doc/sourcebuild.texi @@ -1552,6 +1552,11 @@ ARM target generates Thumb-2 code for @code{-mthumb}. @item arm_vfp_ok ARM target supports @code{-mfpu=vfp -mfloat-abi=softfp}. Some multilibs may be incompatible with these options. + +@item arm_prefer_ldrd_strd +ARM target prefers @code{LDRD} and @code{STRD} instructions over +@code{LDM} and @code{STM} instructions. + @end table @subsubsection MIPS-specific attributes diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp index 8f793b7..4bf2424 100644 --- a/gcc/testsuite/lib/target-supports.exp +++ b/gcc/testsuite/lib/target-supports.exp @@ -2462,6 +2462,18 @@ proc check_effective_target_arm_iwmmxt_ok { } { } } +# Return true if LDRD/STRD instructions are prefered over LDM/STM instructions +# for an ARM target. +proc check_effective_target_arm_prefer_ldrd_strd { } { + if { ![check_effective_target_arm32] } { + return 0; + } + + return [check_no_messages_and_pattern arm_prefer_ldrd_strd "strd\tr" assembly { + void foo (int *p) { p[0] = 1; p[1] = 0;} + } "-O2 -mthumb" ] +} + # Return 1 if this is a PowerPC target with floating-point registers. proc check_effective_target_powerpc_fprs { } {
Ping! Thanks. -----Original Message----- From: Greta Yorsh [mailto:greta.yorsh@arm.com] Sent: 10 October 2012 15:28 To: GCC Patches Cc: Ramana Radhakrishnan; Richard Earnshaw; nickc@redhat.com; paul@codesourcery.com; Greta Yorsh; mikestump@comcast.net; ro@CeBiTec.Uni-Bielefeld.DE; janisjo@codesourcery.com Subject: [PATCH, Testsuite] Add new effective target arm_prefer_ldrd_strd In the testsuite, distinguish between arm targets that prefer LDRD/STRD and arm targets that prefer LDM/STM. This patch adds a new effective target test and updates documentation accordingly. Ok for trunk? Thanks, Greta ChangeLog gcc/testsuite/ 2012-09-13 Greta Yorsh <Greta.Yorsh@arm.com> * gcc.target/arm/target-supports.exp (check_effective_target_arm_prefer_ldrd_strd): New procedure. gcc/ 2012-09-13 Greta Yorsh <Greta.Yorsh@arm.com> * doc/sourcebuild.texi: Document new effective target keyword arm_prefer_ldrd_strd.