diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.9/0060-Only-allow-e500-double-in-SPE_SIMD_REGNO_P-registers.patch')
-rw-r--r-- | 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/meta/recipes-devtools/gcc/gcc-4.9/0060-Only-allow-e500-double-in-SPE_SIMD_REGNO_P-registers.patch b/meta/recipes-devtools/gcc/gcc-4.9/0060-Only-allow-e500-double-in-SPE_SIMD_REGNO_P-registers.patch deleted file mode 100644 index 75a9fdd441..0000000000 --- a/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 @@ | |||
1 | From 5c0092070253113cf0d9c45eacc884b3ecc34d81 Mon Sep 17 00:00:00 2001 | ||
2 | From: jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | ||
3 | Date: Sat, 25 Oct 2014 00:23:17 +0000 | ||
4 | Subject: [PATCH] Only allow e500 double in SPE_SIMD_REGNO_P registers. | ||
5 | |||
6 | rs6000_hard_regno_nregs_internal allows SPE vectors in single | ||
7 | registers satisfying SPE_SIMD_REGNO_P (i.e. register numbers 0 to | ||
8 | 31). However, the corresponding test for e500 double treats all | ||
9 | registers as being able to store a 64-bit value, rather than just | ||
10 | those GPRs. | ||
11 | |||
12 | Logically this inconsistency is wrong; in addition, it causes problems | ||
13 | unwinding from signal handlers. linux-unwind.h uses | ||
14 | ARG_POINTER_REGNUM as a place to store the return address from a | ||
15 | signal handler, but this logic in rs6000_hard_regno_nregs_internal | ||
16 | results in that being considered an 8-byte register, resulting in | ||
17 | assertion failures. | ||
18 | (<https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02625.html> first | ||
19 | needs to be applied for unwinding to work in general on e500.) This | ||
20 | patch makes rs6000_hard_regno_nregs_internal handle the e500 double | ||
21 | case consistently with SPE vectors. | ||
22 | |||
23 | Tested with no regressions with cross to powerpc-linux-gnuspe (given | ||
24 | the aforementioned patch applied). Failures of signal handling | ||
25 | unwinding tests such as gcc.dg/cleanup-{8,9,10,11}.c are fixed by this | ||
26 | patch. | ||
27 | |||
28 | * config/rs6000/rs6000.c (rs6000_hard_regno_nregs_internal): Do | ||
29 | not allow e500 double in registers not satisyfing | ||
30 | SPE_SIMD_REGNO_P. | ||
31 | |||
32 | |||
33 | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216688 138bc75d-0d04-0410-961f-82ee72b054a4 | ||
34 | |||
35 | Signed-off-by: Khem Raj <raj.khem@gmail.com> | ||
36 | Upstream-Status: Backport [gcc 5.0] | ||
37 | |||
38 | --- | ||
39 | gcc/ChangeLog | 6 ++++++ | ||
40 | gcc/config/rs6000/rs6000.c | 2 +- | ||
41 | 2 files changed, 7 insertions(+), 1 deletion(-) | ||
42 | |||
43 | Index: gcc-4.9.2/gcc/config/rs6000/rs6000.c | ||
44 | =================================================================== | ||
45 | --- gcc-4.9.2.orig/gcc/config/rs6000/rs6000.c | ||
46 | +++ gcc-4.9.2/gcc/config/rs6000/rs6000.c | ||
47 | @@ -1703,7 +1703,7 @@ rs6000_hard_regno_nregs_internal (int re | ||
48 | SCmode so as to pass the value correctly in a pair of | ||
49 | registers. */ | ||
50 | else if (TARGET_E500_DOUBLE && FLOAT_MODE_P (mode) && mode != SCmode | ||
51 | - && !DECIMAL_FLOAT_MODE_P (mode)) | ||
52 | + && !DECIMAL_FLOAT_MODE_P (mode) && SPE_SIMD_REGNO_P (regno)) | ||
53 | reg_size = UNITS_PER_FP_WORD; | ||
54 | |||
55 | else | ||