diff options
Diffstat (limited to 'import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0060-Only-allow-e500-double-in-SPE_SIMD_REGNO_P-registers.patch')
-rw-r--r-- | import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0060-Only-allow-e500-double-in-SPE_SIMD_REGNO_P-registers.patch | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0060-Only-allow-e500-double-in-SPE_SIMD_REGNO_P-registers.patch b/import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0060-Only-allow-e500-double-in-SPE_SIMD_REGNO_P-registers.patch deleted file mode 100644 index 75a9fdd44..000000000 --- a/import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0060-Only-allow-e500-double-in-SPE_SIMD_REGNO_P-registers.patch +++ /dev/null @@ -1,55 +0,0 @@ -From 5c0092070253113cf0d9c45eacc884b3ecc34d81 Mon Sep 17 00:00:00 2001 -From: jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> -Date: Sat, 25 Oct 2014 00:23:17 +0000 -Subject: [PATCH] Only allow e500 double in SPE_SIMD_REGNO_P registers. - -rs6000_hard_regno_nregs_internal allows SPE vectors in single -registers satisfying SPE_SIMD_REGNO_P (i.e. register numbers 0 to -31). However, the corresponding test for e500 double treats all -registers as being able to store a 64-bit value, rather than just -those GPRs. - -Logically this inconsistency is wrong; in addition, it causes problems -unwinding from signal handlers. linux-unwind.h uses -ARG_POINTER_REGNUM as a place to store the return address from a -signal handler, but this logic in rs6000_hard_regno_nregs_internal -results in that being considered an 8-byte register, resulting in -assertion failures. -(<https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02625.html> first -needs to be applied for unwinding to work in general on e500.) This -patch makes rs6000_hard_regno_nregs_internal handle the e500 double -case consistently with SPE vectors. - -Tested with no regressions with cross to powerpc-linux-gnuspe (given -the aforementioned patch applied). Failures of signal handling -unwinding tests such as gcc.dg/cleanup-{8,9,10,11}.c are fixed by this -patch. - - * config/rs6000/rs6000.c (rs6000_hard_regno_nregs_internal): Do - not allow e500 double in registers not satisyfing - SPE_SIMD_REGNO_P. - - -git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216688 138bc75d-0d04-0410-961f-82ee72b054a4 - -Signed-off-by: Khem Raj <raj.khem@gmail.com> -Upstream-Status: Backport [gcc 5.0] - ---- - gcc/ChangeLog | 6 ++++++ - gcc/config/rs6000/rs6000.c | 2 +- - 2 files changed, 7 insertions(+), 1 deletion(-) - -Index: gcc-4.9.2/gcc/config/rs6000/rs6000.c -=================================================================== ---- gcc-4.9.2.orig/gcc/config/rs6000/rs6000.c -+++ gcc-4.9.2/gcc/config/rs6000/rs6000.c -@@ -1703,7 +1703,7 @@ rs6000_hard_regno_nregs_internal (int re - SCmode so as to pass the value correctly in a pair of - registers. */ - else if (TARGET_E500_DOUBLE && FLOAT_MODE_P (mode) && mode != SCmode -- && !DECIMAL_FLOAT_MODE_P (mode)) -+ && !DECIMAL_FLOAT_MODE_P (mode) && SPE_SIMD_REGNO_P (regno)) - reg_size = UNITS_PER_FP_WORD; - - else |