diff options
| -rw-r--r-- | 15.0.0/gentoo/72_all_PR117476-revert.patch | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/15.0.0/gentoo/72_all_PR117476-revert.patch b/15.0.0/gentoo/72_all_PR117476-revert.patch deleted file mode 100644 index c073213..0000000 --- a/15.0.0/gentoo/72_all_PR117476-revert.patch +++ /dev/null @@ -1,74 +0,0 @@ -From 7f98f96e02bd3b5cac35655d933382f9225fef59 Mon Sep 17 00:00:00 2001 -Message-ID: <7f98f96e02bd3b5cac35655d933382f9225fef59.1730995976.git.sam@gentoo.org> -From: Sam James <sam@gentoo.org> -Date: Thu, 7 Nov 2024 16:12:40 +0000 -Subject: [PATCH] Revert "[PATCH v2] RISC-V: zero_extend(not) -> xor - optimization [PR112398]" - -This reverts commit 69bd93c167fefbdff0cb88614275358b7a2b2941. - -Bug: https://gcc.gnu.org/PR117476 ---- - gcc/simplify-rtx.cc | 22 ---------------------- - gcc/testsuite/gcc.target/riscv/pr112398.c | 14 -------------- - 2 files changed, 36 deletions(-) - delete mode 100644 gcc/testsuite/gcc.target/riscv/pr112398.c - -diff --git a/gcc/simplify-rtx.cc b/gcc/simplify-rtx.cc -index d05efac20dc8..893c5f6e1ae0 100644 ---- a/gcc/simplify-rtx.cc -+++ b/gcc/simplify-rtx.cc -@@ -1842,28 +1842,6 @@ simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode, - & ~GET_MODE_MASK (op_mode)) == 0) - return SUBREG_REG (op); - -- /* Trying to optimize: -- (zero_extend:M (subreg:N (not:M (X:M)))) -> -- (xor:M (zero_extend:M (subreg:N (X:M)), mask)) -- where the mask is GET_MODE_MASK (N). -- For the cases when X:M doesn't have any non-zero bits -- outside of mode N, (zero_extend:M (subreg:N (X:M)) -- will be simplified to just (X:M) -- and whole optimization will be -> (xor:M (X:M, mask)). */ -- if (SUBREG_P (op) -- && GET_CODE (XEXP (op, 0)) == NOT -- && GET_MODE (XEXP (op, 0)) == mode -- && subreg_lowpart_p (op) -- && GET_MODE_SIZE (GET_MODE (op)).is_constant () -- && (nonzero_bits (XEXP (XEXP (op, 0), 0), mode) -- & ~GET_MODE_MASK (mode)) == 0) -- { -- const uint64_t mask = GET_MODE_MASK (GET_MODE (op)); -- return simplify_gen_binary (XOR, mode, -- XEXP (XEXP (op, 0), 0), -- gen_int_mode (mask, mode)); -- } -- - #if defined(POINTERS_EXTEND_UNSIGNED) - /* As we do not know which address space the pointer is referring to, - we can do this only if the target does not support different pointer -diff --git a/gcc/testsuite/gcc.target/riscv/pr112398.c b/gcc/testsuite/gcc.target/riscv/pr112398.c -deleted file mode 100644 -index 624a665b76c9..000000000000 ---- a/gcc/testsuite/gcc.target/riscv/pr112398.c -+++ /dev/null -@@ -1,14 +0,0 @@ --/* { dg-do compile } */ --/* { dg-options "-march=rv64gc -mabi=lp64d" } */ --/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" } } */ -- --#include <stdint.h> -- --uint8_t neg_u8 (const uint8_t src) --{ -- return ~src; --} -- --/* { dg-final { scan-assembler-times "xori\t" 1 } } */ --/* { dg-final { scan-assembler-not "not\t" } } */ --/* { dg-final { scan-assembler-not "andi\t" } } */ - -base-commit: 6a6b8b847bce78a909379f3b9d3365c4ac4f0ff5 --- -2.47.0 - |