Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- scripts/coccinelle/tcg_gen_extract.cocci | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 scripts/coccinelle/tcg_gen_extract.cocci
diff --git a/scripts/coccinelle/tcg_gen_extract.cocci b/scripts/coccinelle/tcg_gen_extract.cocci new file mode 100644 index 0000000000..4080f97cc7 --- /dev/null +++ b/scripts/coccinelle/tcg_gen_extract.cocci @@ -0,0 +1,26 @@ +// optimize TCG using extract op +// +// Copyright: (C) 2017 Philippe Mathieu-Daudé. GPLv2. +// Confidence: High +// Options: --macro-file scripts/cocci-macro-file.h +@@ +identifier ret, arg; +constant ofs, len; +@@ +( +// from Nikunj A Dadhania comment: +// http://lists.nongnu.org/archive/html/qemu-devel/2017-02/msg05211.html +-tcg_gen_shri_tl(ret, arg, ofs); +-tcg_gen_andi_tl(ret, ret, len); ++tcg_gen_extract_tl(ret, arg, ofs, len); +| +// from Aurelien Jarno comment: +// http://lists.nongnu.org/archive/html/qemu-devel/2017-05/msg01466.html +-tcg_gen_shri_i32(ret, arg, ofs); +-tcg_gen_andi_i32(ret, ret, len); ++tcg_gen_extract_i32(ret, arg, ofs, len); +| +-tcg_gen_shri_i64(ret, arg, ofs); +-tcg_gen_andi_i64(ret, ret, len); ++tcg_gen_extract_i64(ret, arg, ofs, len); +) -- 2.11.0
