From 585a449d7307c46919fa9b2d6a0ee63fcb692789 Mon Sep 17 00:00:00 2001 From: Sergey Shalnov Date: Tue, 24 Oct 2017 10:34:55 +0000 Subject: [PATCH] Avoid 512-bit mode MOV for prefer-avx256 option in Intel AVX512 configuration gcc/ * config/i386/i386.md(*movsf_internal, *movdf_internal): Avoid 512-bit AVX modes for TARGET_PREFER_AVX256. From-SVN: r254038 --- gcc/ChangeLog | 5 +++++ gcc/config/i386/i386.md | 12 ++++++++---- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f42428c57f2..82d69edfb0b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2017-10-06 Sergey Shalnov + + * config/i386/i386.md(*movsf_internal, *movdf_internal): + Avoid 512-bit AVX modes for TARGET_PREFER_AVX256. + 2017-10-24 Eric Botcazou PR middle-end/82569 diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 57d258298aa..d5792eb22a4 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -3575,8 +3575,10 @@ /* movaps is one byte shorter for non-AVX targets. */ (eq_attr "alternative" "13,17") - (cond [(ior (match_operand 0 "ext_sse_reg_operand") - (match_operand 1 "ext_sse_reg_operand")) + (cond [(and (ior (not (match_test "TARGET_PREFER_AVX256")) + (not (match_test "TARGET_AVX512VL"))) + (ior (match_operand 0 "ext_sse_reg_operand") + (match_operand 1 "ext_sse_reg_operand"))) (const_string "V8DF") (ior (not (match_test "TARGET_SSE2")) (match_test "TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL")) @@ -3750,8 +3752,10 @@ better to maintain the whole registers in single format to avoid problems on using packed logical operations. */ (eq_attr "alternative" "6") - (cond [(ior (match_operand 0 "ext_sse_reg_operand") - (match_operand 1 "ext_sse_reg_operand")) + (cond [(and (ior (not (match_test "TARGET_PREFER_AVX256")) + (not (match_test "TARGET_AVX512VL"))) + (ior (match_operand 0 "ext_sse_reg_operand") + (match_operand 1 "ext_sse_reg_operand"))) (const_string "V16SF") (ior (match_test "TARGET_SSE_PARTIAL_REG_DEPENDENCY") (match_test "TARGET_SSE_SPLIT_REGS")) -- 2.30.2