| Message ID | orsfhyxik0.fsf@lxoliva.fsfla.org |
|---|---|
| State | New |
| Headers | show |
| Series | [PR42093,arm,thumb2] disable tree-dce for test | expand |
On 02/12/2022 09:26, Alexandre Oliva via Gcc-patches wrote: > > CD-DCE introduces blocks to share common PHI nodes, which replaces a > backwards branch that used to prevent the thumb2 jump table shortening > that PR42093 tested for. In order to keep on testing that the > backward branch prevents the jumptable shortening, disable tree-dce. > > Regstraped on x86_64-linux-gnu, also tested with crosses to riscv64-elf > and arm-eabi. Ok to install? > > > for gcc/testsuite/ChangeLog > > PR target/42093 > * gcc.target/arm/pr42093.c: Disable tree-dce. OK. R. > --- > gcc/testsuite/gcc.target/arm/pr42093.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/gcc/testsuite/gcc.target/arm/pr42093.c b/gcc/testsuite/gcc.target/arm/pr42093.c > index 7ba2f933eef81..69b1470607c7f 100644 > --- a/gcc/testsuite/gcc.target/arm/pr42093.c > +++ b/gcc/testsuite/gcc.target/arm/pr42093.c > @@ -1,4 +1,4 @@ > -/* { dg-options "-mthumb -O2 -fno-reorder-blocks" } */ > +/* { dg-options "-mthumb -O2 -fno-reorder-blocks -fno-tree-dce" } */ > /* { dg-require-effective-target arm_thumb2_ok } */ > /* { dg-final { scan-assembler-not "tbb" } } */ > /* { dg-final { scan-assembler-not "tbh" } } */ >
diff --git a/gcc/testsuite/gcc.target/arm/pr42093.c b/gcc/testsuite/gcc.target/arm/pr42093.c index 7ba2f933eef81..69b1470607c7f 100644 --- a/gcc/testsuite/gcc.target/arm/pr42093.c +++ b/gcc/testsuite/gcc.target/arm/pr42093.c @@ -1,4 +1,4 @@ -/* { dg-options "-mthumb -O2 -fno-reorder-blocks" } */ +/* { dg-options "-mthumb -O2 -fno-reorder-blocks -fno-tree-dce" } */ /* { dg-require-effective-target arm_thumb2_ok } */ /* { dg-final { scan-assembler-not "tbb" } } */ /* { dg-final { scan-assembler-not "tbh" } } */