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| author | Jakub Jelinek <jakub@redhat.com> | 2012-06-14 20:26:53 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-06-14 20:26:53 +0200 |
| commit | 4e534d30ea5d0ed3ed326b34a6c4c18ee7147350 (patch) | |
| tree | 153bfad0df8b841ff74fd1eaa202d3b3471e13a3 | |
| parent | 479f75468270993608b1b336baa6e05c9bae7907 (diff) | |
| download | gcc-4e534d30ea5d0ed3ed326b34a6c4c18ee7147350.zip gcc-4e534d30ea5d0ed3ed326b34a6c4c18ee7147350.tar.gz gcc-4e534d30ea5d0ed3ed326b34a6c4c18ee7147350.tar.bz2 | |
re PR target/53639 (x86_64: redundant 64-bit operations on 32-bit integers)
PR target/53639
* config/i386/i386.md (*anddi_1 into *andsi_1_zext splitter): New.
From-SVN: r188629
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/i386/i386.md | 12 |
2 files changed, 17 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 112c163..dc9135d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2012-06-14 Jakub Jelinek <jakub@redhat.com> + + PR target/53639 + * config/i386/i386.md (*anddi_1 into *andsi_1_zext splitter): New. + 2012-06-14 Richard Earnshaw <rearnsha@arm.com> * arm.c (arm_cirrus_insn_p): Delete. diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index a2e6a52..6135de9 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -7933,6 +7933,18 @@ [(set_attr "type" "alu1") (set_attr "mode" "QI")]) +;; Turn *anddi_1 into *andsi_1_zext if possible. +(define_split + [(set (match_operand:DI 0 "register_operand") + (and:DI (subreg:DI (match_operand:SI 1 "register_operand") 0) + (match_operand:DI 2 "x86_64_zext_immediate_operand"))) + (clobber (reg:CC FLAGS_REG))] + "TARGET_64BIT" + [(parallel [(set (match_dup 0) + (zero_extend:DI (and:SI (match_dup 1) (match_dup 2)))) + (clobber (reg:CC FLAGS_REG))])] + "operands[2] = gen_lowpart (SImode, operands[2]);") + (define_split [(set (match_operand:SWI248 0 "register_operand") (and:SWI248 (match_operand:SWI248 1 "nonimmediate_operand") |