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- u_llvmpipe-lp_build_gather_elem_vec-BE-fix-for-3x16-lo.patch

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* Fix loading of a 3x16 vector as a single 48-bit load on 
    big-endian systems (PPC64, S390). [fdo#100613]

OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/Mesa?expand=0&rev=617
This commit is contained in:
Stefan Dirsch 2017-05-31 08:00:23 +00:00 committed by Git OBS Bridge
parent b357255f8e
commit 07667cc47b
3 changed files with 58 additions and 0 deletions
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7
Mesa.changes
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@ -1,3 +1,10 @@
-------------------------------------------------------------------
Wed May 31 07:42:39 UTC 2017 - sndirsch@suse.com
- u_llvmpipe-lp_build_gather_elem_vec-BE-fix-for-3x16-lo.patch
* Fix loading of a 3x16 vector as a single 48-bit load on
big-endian systems (PPC64, S390). [fdo#100613]
-------------------------------------------------------------------
Thu May 25 07:48:22 UTC 2017 - mimi.vx@gmail.com

2
Mesa.spec
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@ -85,6 +85,7 @@ Patch21: n_Define-GLAPIVAR-separate-from-GLAPI.patch
Patch31: archlinux_0001-Fix-linkage-against-shared-glapi.patch
Patch32: archlinux_glvnd-fix-gl-dot-pc.patch
Patch40: u_gallivm-correct-channel-shift-logic-on-big-endian.patch
Patch41: u_llvmpipe-lp_build_gather_elem_vec-BE-fix-for-3x16-lo.patch
BuildRequires: autoconf >= 2.60
BuildRequires: automake
@ -656,6 +657,7 @@ rm -rf docs/README.{VMS,WIN32,OS2}
%endif
%patch40 -p1
%patch41 -p1
# Remove requires to libglvnd/libglvnd-devel from baselibs.conf when
# disabling libglvnd build; ugly ...

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u_llvmpipe-lp_build_gather_elem_vec-BE-fix-for-3x16-lo.patch Normal file
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@ -0,0 +1,49 @@
From 3f993cdf6db5cf344179fcb4fbf899f6ef9a6b2b Mon Sep 17 00:00:00 2001
From: Ben Crocker <bcrocker@redhat.com>
Date: Tue, 30 May 2017 12:34:23 -0400
Subject: [PATCH] llvmpipe: lp_build_gather_elem_vec BE fix for 3x16 load
Fix loading of a 3x16 vector as a single 48-bit load
on big-endian systems (PPC64, S390).
Signed-off-by: Ben Crocker <bcrocker@redhat.com>
---
src/gallium/auxiliary/gallivm/lp_bld_gather.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_gather.c b/src/gallium/auxiliary/gallivm/lp_bld_gather.c
index ccd0376..8e56e42 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_gather.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_gather.c
@@ -234,13 +234,26 @@ lp_build_gather_elem_vec(struct gallivm_state *gallivm,
*/
res = LLVMBuildZExt(gallivm->builder, res, dst_elem_type, "");
- if (vector_justify) {
#ifdef PIPE_ARCH_BIG_ENDIAN
+ if (vector_justify) {
res = LLVMBuildShl(gallivm->builder, res,
LLVMConstInt(dst_elem_type,
dst_type.width - src_width, 0), "");
-#endif
}
+ if (src_width == 48) {
+ LLVMValueRef shuffles[4] = {
+ lp_build_const_int32(gallivm, 2),
+ lp_build_const_int32(gallivm, 1),
+ lp_build_const_int32(gallivm, 0),
+ lp_build_const_int32(gallivm, 3),
+ };
+ struct lp_type type16 = {FALSE, FALSE, TRUE, FALSE, 16, 4};
+ res = LLVMBuildBitCast(gallivm->builder, res,
+ lp_build_vec_type(gallivm, type16), "");
+ res = LLVMBuildShuffleVector(gallivm->builder, res, res, LLVMConstVector(shuffles, 4), "");
+ res = LLVMBuildBitCast(gallivm->builder, res, dst_elem_type, "");
+ }
+#endif
}
}
return res;
--
2.7.4