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| author | Uros Bizjak <ubizjak@gmail.com> | 2008-02-19 08:23:30 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2008-02-19 08:23:30 +0100 |
| commit | 0e93e1b4eea9bd6aca2380d0141345fea061aad8 (patch) | |
| tree | 754c035b8aea596403420b9648fca9769f5e4227 /gcc | |
| parent | 02d353cfc901c7d7f57376029ef89ca1a043043b (diff) | |
| download | gcc-0e93e1b4eea9bd6aca2380d0141345fea061aad8.zip gcc-0e93e1b4eea9bd6aca2380d0141345fea061aad8.tar.gz gcc-0e93e1b4eea9bd6aca2380d0141345fea061aad8.tar.bz2 | |
re PR target/33555 (x86 missed opportunity for sbb)
PR target/33555
* config/i386/i386.md (*x86_movsicc_0_m1_se): New insn pattern.
(*x86_movdicc_0_m1_se): Ditto.
testsuite/ChangeLog:
PR target/33555
* gcc.target/i386/pr33555.c: New test.
From-SVN: r132414
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/i386/i386.md | 30 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr33555.c | 9 |
4 files changed, 50 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3a23574..e023878 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2008-02-19 Uros Bizjak <ubizjak@gmail.com> + PR target/33555 + * config/i386/i386.md (*x86_movsicc_0_m1_se): New insn pattern. + (*x86_movdicc_0_m1_se): Ditto. + +2008-02-19 Uros Bizjak <ubizjak@gmail.com> + * config/i386/sfp-machine.h (__gcc_CMPtype): New typedef. (CMPtype): Define as __gcc_CMPtype. * config/rs6000/sfp-machine.h (__gcc_CMPtype): New typedef. diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 1724c0d..3c9c2cc 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -19402,6 +19402,21 @@ (set_attr "mode" "DI") (set_attr "length_immediate" "0")]) +(define_insn "*x86_movdicc_0_m1_se" + [(set (match_operand:DI 0 "register_operand" "=r") + (sign_extract:DI (match_operand 1 "ix86_carry_flag_operator" "") + (const_int 1) + (const_int 0))) + (clobber (reg:CC FLAGS_REG))] + "" + "sbb{q}\t%0, %0" + [(set_attr "type" "alu") + (set_attr "pent_pair" "pu") + (set_attr "memory" "none") + (set_attr "imm_disp" "false") + (set_attr "mode" "DI") + (set_attr "length_immediate" "0")]) + (define_insn "*movdicc_c_rex64" [(set (match_operand:DI 0 "register_operand" "=r,r") (if_then_else:DI (match_operator 1 "ix86_comparison_operator" @@ -19445,6 +19460,21 @@ (set_attr "mode" "SI") (set_attr "length_immediate" "0")]) +(define_insn "*x86_movsicc_0_m1_se" + [(set (match_operand:SI 0 "register_operand" "=r") + (sign_extract:SI (match_operand 1 "ix86_carry_flag_operator" "") + (const_int 1) + (const_int 0))) + (clobber (reg:CC FLAGS_REG))] + "" + "sbb{l}\t%0, %0" + [(set_attr "type" "alu") + (set_attr "pent_pair" "pu") + (set_attr "memory" "none") + (set_attr "imm_disp" "false") + (set_attr "mode" "SI") + (set_attr "length_immediate" "0")]) + (define_insn "*movsicc_noc" [(set (match_operand:SI 0 "register_operand" "=r,r") (if_then_else:SI (match_operator 1 "ix86_comparison_operator" diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 55715a6..db65ae6 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2008-02-19 Uros Bizjak <ubizjak@gmail.com> + + PR target/33555 + * gcc.target/i386/pr33555.c: New test. + 2008-02-18 H.J. Lu <hongjiu.lu@intel.com> PR target/35189 diff --git a/gcc/testsuite/gcc.target/i386/pr33555.c b/gcc/testsuite/gcc.target/i386/pr33555.c new file mode 100644 index 0000000..21c56b7 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr33555.c @@ -0,0 +1,9 @@ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +/* { dg-final { scan-assembler "sbbl" } } */ + +int test(unsigned long a, unsigned long b) +{ + return -(a < b); +} + |