diff options
| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-21 13:07:11 +0000 |
|---|---|---|
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-21 13:07:11 +0000 |
| commit | 26035a127744b16c4b7c407e54415267fbce9939 (patch) | |
| tree | 3aa1576fa52ac3553aed3346a2d8c4619cd8c697 | |
| parent | 23e2de14b9fd74453c54fbbdfec0d3fe6115c788 (diff) | |
| download | gcc-26035a127744b16c4b7c407e54415267fbce9939.tar.gz | |
Use unspec_volatile on rdrand<mode>_1
gcc/
Backport from mainline
PR target/53416
* config/i386/i386.md (UNSPEC_RDRAND): Renamed to ...
(UNSPECV_RDRAND): This.
(rdrand<mode>_1): Updated.
gcc/testsuite/
Backport from mainline
PR target/53416
* gcc.target/i386/pr53416.c: New file.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@187713 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 10 | ||||
| -rw-r--r-- | gcc/config/i386/i386.md | 10 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr53416.c | 17 |
4 files changed, 41 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3f41b4ebe19..5caba373927 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,13 @@ +2012-05-21 H.J. Lu <hongjiu.lu@intel.com> + + Backport from mainline + 2012-05-21 H.J. Lu <hongjiu.lu@intel.com> + + PR target/53416 + * config/i386/i386.md (UNSPEC_RDRAND): Renamed to ... + (UNSPECV_RDRAND): This. + (rdrand<mode>_1): Updated. + 2012-05-20 H.J. Lu <hongjiu.lu@intel.com> Backport from mainline diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 9e99b6db123..db5ff04cce5 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -170,9 +170,6 @@ ;; For CRC32 support UNSPEC_CRC32 - ;; For RDRAND support - UNSPEC_RDRAND - ;; For BMI support UNSPEC_BEXTR @@ -201,6 +198,9 @@ UNSPECV_RDGSBASE UNSPECV_WRFSBASE UNSPECV_WRGSBASE + + ;; For RDRAND support + UNSPECV_RDRAND ]) ;; Constants to represent rounding modes in the ROUND instruction @@ -18147,9 +18147,9 @@ (define_insn "rdrand<mode>_1" [(set (match_operand:SWI248 0 "register_operand" "=r") - (unspec:SWI248 [(const_int 0)] UNSPEC_RDRAND)) + (unspec_volatile:SWI248 [(const_int 0)] UNSPECV_RDRAND)) (set (reg:CCC FLAGS_REG) - (unspec:CCC [(const_int 0)] UNSPEC_RDRAND))] + (unspec_volatile:CCC [(const_int 0)] UNSPECV_RDRAND))] "TARGET_RDRND" "rdrand\t%0" [(set_attr "type" "other") diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 1c35155f01b..8fa135cca1c 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,12 @@ +2012-05-21 H.J. Lu <hongjiu.lu@intel.com> + + Backport from mainline + 2012-05-21 Uros Bizjak <ubizjak@gmail.com> + H.J. Lu <hongjiu.lu@intel.com> + + PR target/53416 + * gcc.target/i386/pr53416.c: New file. + 2012-05-20 Eric Botcazou <ebotcazou@adacore.com> * gnat.dg/lto13.adb: New test. diff --git a/gcc/testsuite/gcc.target/i386/pr53416.c b/gcc/testsuite/gcc.target/i386/pr53416.c new file mode 100644 index 00000000000..68abe8bddbc --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr53416.c @@ -0,0 +1,17 @@ +/* PR target/53416 */ +/* { dg-options "-O2 -mrdrnd" } */ + +int test (void) +{ + unsigned int number = 0; + int result0, result1, result2, result3; + + result0 = __builtin_ia32_rdrand32_step (&number); + result1 = __builtin_ia32_rdrand32_step (&number); + result2 = __builtin_ia32_rdrand32_step (&number); + result3 = __builtin_ia32_rdrand32_step (&number); + + return result0 + result1 +result2 + result3; +} + +/* { dg-final { scan-assembler-times "rdrand" 4 } } */ |