diff options
| author | Mihailo Stojanovic <mistojanovic@wavecomp.com> | 2019-10-14 21:07:56 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2019-10-14 15:07:56 -0600 |
| commit | 4236e880ee7902f789f8b99e21faea33ecb8a6dd (patch) | |
| tree | 25e3511ed0b713647b3ec1d9f580dc30656c0597 /gcc | |
| parent | ac308262f344153d472b16c85cc1c3036ce43308 (diff) | |
| download | gcc-4236e880ee7902f789f8b99e21faea33ecb8a6dd.zip gcc-4236e880ee7902f789f8b99e21faea33ecb8a6dd.tar.gz gcc-4236e880ee7902f789f8b99e21faea33ecb8a6dd.tar.bz2 | |
mips.c (mips_cannot_force_const_mem): Reject vector constants.
* config/mips/mips.c (mips_cannot_force_const_mem): Reject
vector constants.
* gcc.target/mips/constant-spill.c: New test.
From-SVN: r276969
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/mips/constant-spill.c | 31 |
4 files changed, 42 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index adc3550..516e9c1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2019-10-14 Mihailo Stojanovic <mistojanovic@wavecomp.com> + + * config/mips/mips.c (mips_cannot_force_const_mem): Reject + vector constants. + 2019-10-14 Iain Sandoe <iain@sandoe.co.uk> * config/darwin.c: Use unsigned ints for the picbase label diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index e7c2212..7f6a0db 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -2409,7 +2409,8 @@ mips_cannot_force_const_mem (machine_mode mode, rtx x) references, reload will consider forcing C into memory and using one of the instruction's memory alternatives. Returning false here will force it to use an input reload instead. */ - if (CONST_INT_P (x) && mips_legitimate_constant_p (mode, x)) + if ((CONST_INT_P (x) || GET_CODE (x) == CONST_VECTOR) + && mips_legitimate_constant_p (mode, x)) return true; split_const (x, &base, &offset); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 281da7f..08d4a79 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2019-10-14 Mihailo Stojanovic <mistojanovic@wavecomp.com> + + * gcc.target/mips/constant-spill.c: New test. + 2019-10-14 Richard Biener <rguenther@suse.de> PR tree-optimization/92069 diff --git a/gcc/testsuite/gcc.target/mips/constant-spill.c b/gcc/testsuite/gcc.target/mips/constant-spill.c new file mode 100644 index 0000000..1494705 --- /dev/null +++ b/gcc/testsuite/gcc.target/mips/constant-spill.c @@ -0,0 +1,31 @@ +/* { dg-do compile } */ +/* { dg-options "-mfp64 -mhard-float -mmsa" } */ +/* { dg-skip-if "code quality test" { *-*-* } { "-Os" "-O0" "-O1" "-O2" } { "" } } */ + +void foo (void); + +void bar (void) +{ + int x[4]; + int y[4]; + int i; + + while (1) + { + foo (); + + for (i = 0; i < 4; i++) + { + x[i] = 0; + y[i] = 0; + } + + asm volatile ("" + : + :"m"(x), "m"(y) + :"memory"); + } +} + +/* { dg-final { scan-assembler-not "ld.w" } } */ +/* { dg-final { scan-assembler-times "st.w" 2 } } */ |