e29cecdd47
Copy from Base:System/glibc based on submit request 27940 from user dirkmueller OBS-URL: https://build.opensuse.org/request/show/27940 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/glibc?expand=0&rev=14
40 lines
1.1 KiB
Diff
40 lines
1.1 KiB
Diff
On Mon, Nov 09, 2009 at 11:57:06AM -0800, H.J. Lu wrote:
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> When data is shorter than software pipeline, recovery may fail. This
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> patch avoids it by using a simple loop on data shorter than software
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> pipeline.
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>
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Here is an updated patch. This one properly handles the shorter read
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on speculative load.
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H.J.
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---
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2009-11-09 H.J. Lu <hongjiu.lu@intel.com>
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PR libc/10162
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* sysdeps/ia64/memchr.S: Properly recover from shorter read.
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diff --git a/sysdeps/ia64/memchr.S b/sysdeps/ia64/memchr.S
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index cd062b2..cdd71ca 100644
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--- a/sysdeps/ia64/memchr.S
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+++ b/sysdeps/ia64/memchr.S
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@@ -126,7 +126,16 @@ ENTRY(__memchr)
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br.ret.sptk.many b0
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.recovery:
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- adds ret0 = -((MEMLAT + 1) * 8), ret0;;
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+#if MEMLAT != 6
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+# error "MEMLAT must be 6!"
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+#endif
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+(p[MEMLAT-6]) add ret0 = -8, ret0;;
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+(p[MEMLAT-5]) add ret0 = -8, ret0;;
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+(p[MEMLAT-4]) add ret0 = -8, ret0;;
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+(p[MEMLAT-3]) add ret0 = -8, ret0;;
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+(p[MEMLAT-2]) add ret0 = -8, ret0;;
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+(p[MEMLAT-1]) add ret0 = -8, ret0;;
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+(p[MEMLAT]) add ret0 = -8, ret0;;
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(p[MEMLAT+1]) add ret0 = -8, ret0;;
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(p[MEMLAT+2]) add ret0 = -8, ret0;;
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.l4:
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