diff options
Diffstat (limited to '0283-i386-Change-prefetchi-output-template.patch')
| -rw-r--r-- | 0283-i386-Change-prefetchi-output-template.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/0283-i386-Change-prefetchi-output-template.patch b/0283-i386-Change-prefetchi-output-template.patch new file mode 100644 index 0000000..314c30a --- /dev/null +++ b/0283-i386-Change-prefetchi-output-template.patch @@ -0,0 +1,62 @@ +From 59e07c6c77dcc92d274ca6156b8916f66035dce8 Mon Sep 17 00:00:00 2001 +From: Haochen Jiang <haochen.jiang@intel.com> +Date: Mon, 22 Jul 2024 14:06:18 +0800 +Subject: [PATCH 1/2] i386: Change prefetchi output template + +For prefetchi instructions, RIP-relative address is explicitly mentioned +for operand and assembler obeys that rule strictly. This makes +instruction like: + + prefetchit0 bar + +got illegal for assembler, which should be a broad usage for prefetchi. + +Change to %a to explicitly add (%rip) after function label to make it +legal in assembler so that it could pass to linker to get the real address. + +gcc/ChangeLog: + + * config/i386/i386.md (prefetchi): Change to %a. + +gcc/testsuite/ChangeLog: + + * gcc.target/i386/prefetchi-1.c: Check (%rip). + +Reference: +https://gcc.gnu.org/git/?p=gcc.git;a=commit;h= +062e46a813799684c6f900815fd22451d6294ae1 +--- + gcc/config/i386/i386.md | 2 +- + gcc/testsuite/gcc.target/i386/prefetchi-1.c | 4 ++-- + 2 files changed, 3 insertions(+), 3 deletions(-) + +diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md +index f08c2cfb1..1b733008e 100644 +--- a/gcc/config/i386/i386.md ++++ b/gcc/config/i386/i386.md +@@ -22917,7 +22917,7 @@ + "TARGET_PREFETCHI && TARGET_64BIT" + { + static const char * const patterns[2] = { +- "prefetchit1\t%0", "prefetchit0\t%0" ++ "prefetchit1\t%a0", "prefetchit0\t%a0" + }; + + int locality = INTVAL (operands[1]); +diff --git a/gcc/testsuite/gcc.target/i386/prefetchi-1.c b/gcc/testsuite/gcc.target/i386/prefetchi-1.c +index 80f25e70e..03dfdc55e 100644 +--- a/gcc/testsuite/gcc.target/i386/prefetchi-1.c ++++ b/gcc/testsuite/gcc.target/i386/prefetchi-1.c +@@ -1,7 +1,7 @@ + /* { dg-do compile { target { ! ia32 } } } */ + /* { dg-options "-mprefetchi -O2" } */ +-/* { dg-final { scan-assembler-times "\[ \\t\]+prefetchit0\[ \\t\]+" 2 } } */ +-/* { dg-final { scan-assembler-times "\[ \\t\]+prefetchit1\[ \\t\]+" 2 } } */ ++/* { dg-final { scan-assembler-times "\[ \\t\]+prefetchit0\[ \\t\]+bar\\(%rip\\)" 2 } } */ ++/* { dg-final { scan-assembler-times "\[ \\t\]+prefetchit1\[ \\t\]+bar\\(%rip\\)" 2 } } */ + + #include <x86intrin.h> + +-- +2.31.1 + |