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| author | Segher Boessenkool <segher@kernel.crashing.org> | 2016-06-28 07:56:41 +0200 |
|---|---|---|
| committer | Segher Boessenkool <segher@gcc.gnu.org> | 2016-06-28 07:56:41 +0200 |
| commit | a826405801ce4e28d534e3f693f236405d886caf (patch) | |
| tree | b92fe8cfd230d1136925b46281769fb3bcbfe626 /gcc | |
| parent | 7c788ce223bef845356773178b64de69e753c1b8 (diff) | |
| download | gcc-a826405801ce4e28d534e3f693f236405d886caf.zip gcc-a826405801ce4e28d534e3f693f236405d886caf.tar.gz gcc-a826405801ce4e28d534e3f693f236405d886caf.tar.bz2 | |
rs6000: Fix split of ashdi3_extswsli_dot for memory (PR71670)
The splitter for ashdi3_extswsli_dot for cr0 with memory uses emit_insn
gen_ashdi3_extswsli_dot, which does not work because that emits a scratch,
while the splitter runs after reload so there should be a real register
instead. We can laboriously fix that up, or emit using
gen_ashdi3_extswsli_dot2 instead. This patch does the latter.
PR target/71670
* config/rs6000/rs6000.md (ashdi3_extswsli_dot): Use
gen_ashdi3_extswsli_dot2 instead of gen_ashdi3_extswsli_dot.
gcc/testsuite/
PR target/71670
* gcc.target/powerpc/pr71670.c: New testcase.
From-SVN: r237813
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/powerpc/pr71670.c | 7 |
4 files changed, 19 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4c91c5f..6870078 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-06-27 Segher Boessenkool <segher@kernel.crashing.org> + + PR target/71670 + * config/rs6000/rs6000.md (ashdi3_extswsli_dot): Use + gen_ashdi3_extswsli_dot2 instead of gen_ashdi3_extswsli_dot. + 2016-06-27 Pat Haugen <pthaugen@us.ibm.com> * config/rs6000/rs6000.md ('type' attribute): Add diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index bb31e41..e8a6205 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -4094,7 +4094,7 @@ if (REGNO (cr) == CR0_REGNO) { - emit_insn (gen_ashdi3_extswsli_dot (dest, src2, shift, cr)); + emit_insn (gen_ashdi3_extswsli_dot2 (dest, src2, shift, cr)); DONE; } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7e7cf8b..866cef7 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-06-27 Segher Boessenkool <segher@kernel.crashing.org> + + PR target/71670 + * gcc.target/powerpc/pr71670.c: New testcase. + 2016-06-27 Peter Bergner <bergner@vnet.ibm.com> PR target/71656 diff --git a/gcc/testsuite/gcc.target/powerpc/pr71670.c b/gcc/testsuite/gcc.target/powerpc/pr71670.c new file mode 100644 index 0000000..18fb627 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/pr71670.c @@ -0,0 +1,7 @@ +/* { dg-do compile { target { powerpc*-*-* } } } */ +/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */ +/* { dg-options "-mcpu=power9 -O1" } */ + +volatile int a; +int b; +void fn1(void) { b + (long)b || a; } |