diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-9.3/0039-process_alt_operands-Don-t-match-user-defined-regs-o.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-9.3/0039-process_alt_operands-Don-t-match-user-defined-regs-o.patch | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-9.3/0039-process_alt_operands-Don-t-match-user-defined-regs-o.patch b/meta/recipes-devtools/gcc/gcc-9.3/0039-process_alt_operands-Don-t-match-user-defined-regs-o.patch deleted file mode 100644 index b69114d1e5..0000000000 --- a/meta/recipes-devtools/gcc/gcc-9.3/0039-process_alt_operands-Don-t-match-user-defined-regs-o.patch +++ /dev/null @@ -1,100 +0,0 @@ -From e75bcc2ec4f1e7e081ce18713f0a25913ba15340 Mon Sep 17 00:00:00 2001 -From: Vladimir Makarov <vmakarov@redhat.com> -Date: Wed, 10 Jul 2019 16:07:10 +0000 -Subject: [PATCH 39/39] process_alt_operands: Don't match user defined regs - only if they are early clobbers - -PR target/91102 (aarch64 ICE on Linux kernel with -Os starting with r270266) - -2019-07-10 Vladimir Makarov <vmakarov@redhat.com> - - PR target/91102 - * lra-constraints.c (process_alt_operands): Don't match user - defined regs only if they are early clobbers. - -2019-07-10 Vladimir Makarov <vmakarov@redhat.com> - - PR target/91102 - * gcc.target/aarch64/pr91102.c: New test. - -From-SVN: r273357 -Upstream-Status: Backport [https://github.com/gcc-mirror/gcc/commit/613caed2feb9cfc8158308670b59df3d031ec629] -[takondra: dropped conflicting ChangeLog changes] -Signed-off-by: Taras Kondratiuk <takondra@cisco.com> ---- - gcc/lra-constraints.c | 17 ++++++++++---- - gcc/testsuite/gcc.target/aarch64/pr91102.c | 26 ++++++++++++++++++++++ - 2 files changed, 39 insertions(+), 4 deletions(-) - create mode 100644 gcc/testsuite/gcc.target/aarch64/pr91102.c - -diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c -index cf33da8013e..6382dbf852b 100644 ---- a/gcc/lra-constraints.c -+++ b/gcc/lra-constraints.c -@@ -2172,8 +2172,9 @@ process_alt_operands (int only_alternative) - else - { - /* Operands don't match. If the operands are -- different user defined explicit hard registers, -- then we cannot make them match. */ -+ different user defined explicit hard -+ registers, then we cannot make them match -+ when one is early clobber operand. */ - if ((REG_P (*curr_id->operand_loc[nop]) - || SUBREG_P (*curr_id->operand_loc[nop])) - && (REG_P (*curr_id->operand_loc[m]) -@@ -2192,9 +2193,17 @@ process_alt_operands (int only_alternative) - && REG_P (m_reg) - && HARD_REGISTER_P (m_reg) - && REG_USERVAR_P (m_reg)) -- break; -+ { -+ int i; -+ -+ for (i = 0; i < early_clobbered_regs_num; i++) -+ if (m == early_clobbered_nops[i]) -+ break; -+ if (i < early_clobbered_regs_num -+ || early_clobber_p) -+ break; -+ } - } -- - /* Both operands must allow a reload register, - otherwise we cannot make them match. */ - if (curr_alt[m] == NO_REGS) -diff --git a/gcc/testsuite/gcc.target/aarch64/pr91102.c b/gcc/testsuite/gcc.target/aarch64/pr91102.c -new file mode 100644 -index 00000000000..70b99045a48 ---- /dev/null -+++ b/gcc/testsuite/gcc.target/aarch64/pr91102.c -@@ -0,0 +1,26 @@ -+/* PR target/91102 */ -+/* { dg-do compile } */ -+/* { dg-options "-O2" } */ -+ -+int -+foo (long d, long l) -+{ -+ register long e asm ("x1") = d; -+ register long f asm("x2") = l; -+ asm ("" : : "r" (e), "r" (f)); -+ return 3; -+} -+ -+struct T { int i; int j; }; -+union S { long h; struct T t; }; -+ -+void -+bar (union S b) -+{ -+ while (1) -+ { -+ union S c = b; -+ c.t.j++; -+ b.h = foo (b.h, c.h); -+ } -+} --- -2.25.1 - |