Hi Uros.
> On 23 May 2019, at 07:23, Uros Bizjak <[email protected]> wrote:
>
> On Wed, May 22, 2019 at 8:41 PM Iain Sandoe <[email protected]> wrote:
>>
>> As Dominque noted in PR 64895, somewhere between revisions
>> r244915 and r244957 we see the fuse-caller-save* tests started to
>> XPASS on Darwin, which is a PIC target by default.
>>
>> The XFAILed parts of the tests never seem to be exercised on
>> Linux, and therefore the change would be unnoticed there.
>>
>> I have attached an analysis to the PR of the latest codegen from Linux
>> (which is identical to Darwin modulo the syntactic differences of PIC
>> accesses on the m32 platforms).
>>
>> AFAICT, from the thread in the PR, codegen now seems to be correct.
>> Even if the codegen is still not right, the test conditions need amendment
>> to reflect the current status quo (and the XFAILs are no longers needed).
>>
>> One test requires amendment for the PIC case on Linux, the remainer
>> of the changes are removals of the XFAILs.
>>
>> With the attached patch both Linux and Darwin show 17 / 18 passes m32 / m64.
>>
>> OK for trunk?
>
> These changes are OK as long as they don't regress HJ's x86_64 and
> i686 autotesters.
Applied as r271544, will look out for such fails.
> Double points if they also fix -fpic failures. ;)
make check-gcc-c RUNTESTFLAGS="--target_board=unix/-fpic\{-m32,-m64\}
i386.exp=fuse-caller-save*”
Test run by iains on Thu May 23 07:20:03 2019
Native configuration is x86_64-pc-linux-gnu
=== gcc tests ===
Running target unix/-fpic/-m32
=== gcc Summary for unix/-fpic/-m32 ===
# of expected passes 18
=== gcc Summary for unix/-fpic/-m64 ===
# of expected passes 18
( but, as noted above, these tests are not run ‘-fpic’ on Linux by default,
although in this case a fail on Darwin
would be a fair indication of problems )
thanks
Iain
>> Relevant branch(es)?
>
> After a couple of days in mainline, if there are no autotester
> regressions. Otherwise your call.
>
> Thanks,
> Uros.
>
>>
>> Iain
>>
>> gcc/testsuite/
>>
>> PR rtl-optimisation/64895
>> * gcc.target/i386/fuse-caller-save-rec.c: Remove XFAILs.
>> * gcc.target/i386/fuse-caller-save.c: Likewise.
>> * gcc.target/i386/fuse-caller-save-xmm.c: Adjust tests for
>> PIC cases, remove XFAILs.
>>
>> diff --git a/gcc/testsuite/gcc.target/i386/fuse-caller-save-rec.c
>> b/gcc/testsuite/gcc.target/i386/fuse-caller-save-rec.c
>> index 7abcf91..e8d4efb 100644
>> --- a/gcc/testsuite/gcc.target/i386/fuse-caller-save-rec.c
>> +++ b/gcc/testsuite/gcc.target/i386/fuse-caller-save-rec.c
>> @@ -18,14 +18,12 @@ foo (int y)
>> return y + bar (y);
>> }
>>
>> -/* For !nonpic && ia32 xfails, see PR64895. */
>> -
>> /* Check that no registers are saved/restored. */
>> -/* { dg-final { scan-assembler-not "push" { xfail { { ! nonpic } && ia32 }
>> } } } */
>> -/* { dg-final { scan-assembler-not "pop" { xfail { { ! nonpic } && ia32 } }
>> } } */
>> +/* { dg-final { scan-assembler-not "push" } } */
>> +/* { dg-final { scan-assembler-not "pop" } } */
>>
>> /* Check that addition uses dx. */
>> -/* { dg-final { scan-assembler-times "addl\t%\[re\]?dx, %\[re\]?ax" 1 {
>> xfail { { ! nonpic } && ia32 } } } } */
>> +/* { dg-final { scan-assembler-times "addl\t%\[re\]?dx, %\[re\]?ax" 1 } } */
>>
>> /* Verify that bar is self-recursive. */
>> /* { dg-final { scan-assembler-times "call\t_?bar" 2 } } */
>> diff --git a/gcc/testsuite/gcc.target/i386/fuse-caller-save-xmm.c
>> b/gcc/testsuite/gcc.target/i386/fuse-caller-save-xmm.c
>> index c2d0544..02a5f5b 100644
>> --- a/gcc/testsuite/gcc.target/i386/fuse-caller-save-xmm.c
>> +++ b/gcc/testsuite/gcc.target/i386/fuse-caller-save-xmm.c
>> @@ -15,13 +15,18 @@ foo (v2df y)
>> return y + bar (y);
>> }
>>
>> -/* For !nonpic && ia32 xfails, see PR64895. */
>> -
>> /* Check presence of all insns on xmm registers. These checks are expected
>> to
>> pass with both -fipa-ra and -fno-ipa-ra. */
>> -/* { dg-final { scan-assembler-times "addpd\t\\.?LC0.*, %xmm0" 1 } } */
>> -/* { dg-final { scan-assembler-times "addpd\t%xmm1, %xmm0" 1 { xfail { { !
>> nonpic } && ia32 } } } } */
>> -/* { dg-final { scan-assembler-times "movapd\t%xmm0, %xmm1" 1 { xfail { { !
>> nonpic } && ia32 } } } } */
>> +
>> +/* { dg-final { scan-assembler-times {addpd\t\.?[Ll]C0.*, %xmm0} 1 { target
>> { { ! ia32 } || nonpic } } } } */
>> +/* { dg-final { scan-assembler-times {movapd\t\.?[Ll]C0.*, %xmm1} 1 {
>> target { ia32 && { ! nonpic } } } } } */
>> +
>> +/* We happen to get this for both cases, but in different positions. */
>> +/* { dg-final { scan-assembler-times "addpd\t%xmm1, %xmm0" 1 } } */
>> +
>> +/* { dg-final { scan-assembler-times "movapd\t%xmm0, %xmm1" 1 { target { {
>> ! ia32 } || nonpic } } } } */
>> +/* { dg-final { scan-assembler-times "movapd\t%xmm0, %xmm2" 1 { target {
>> ia32 && { ! nonpic } } } } } */
>> +/* { dg-final { scan-assembler-times "addpd\t%xmm2, %xmm0" 1 { target {
>> ia32 && { ! nonpic } } } } } */
>>
>> /* Check absence of save/restore of xmm1 register. */
>> /* { dg-final { scan-assembler-not "movaps\t%xmm1, \\(%\[re\]?sp\\)" } } */
>> diff --git a/gcc/testsuite/gcc.target/i386/fuse-caller-save.c
>> b/gcc/testsuite/gcc.target/i386/fuse-caller-save.c
>> index 4b8e68d..c0e8bf4 100644
>> --- a/gcc/testsuite/gcc.target/i386/fuse-caller-save.c
>> +++ b/gcc/testsuite/gcc.target/i386/fuse-caller-save.c
>> @@ -16,11 +16,9 @@ foo (int y)
>> return y + bar (y);
>> }
>>
>> -/* For !nonpic && ia32 xfails, see PR64895. */
>> -
>> /* Check that no registers are saved/restored. */
>> -/* { dg-final { scan-assembler-not "push" { xfail { { ! nonpic } && ia32 }
>> } } } */
>> -/* { dg-final { scan-assembler-not "pop" { xfail { { ! nonpic } && ia32 } }
>> } } */
>> +/* { dg-final { scan-assembler-not "push" } } */
>> +/* { dg-final { scan-assembler-not "pop" } } */
>>
>> /* PR61605. If the first argument register and the return register differ,
>> then
>> bar leaves the first argument register intact. That means in foo that the
>> @@ -31,4 +29,4 @@ foo (int y)
>> /* { dg-final { scan-assembler-not "movl" { target { ! ia32 } } } } */
>>
>> /* Check that addition uses di (in case of no copy) or dx (in case of copy).
>> */
>> -/* { dg-final { scan-assembler-times "addl\t%\[re\]?d\[ix\], %\[re\]?ax" 1
>> { xfail { { ! nonpic } && ia32 } } } } */
>> +/* { dg-final { scan-assembler-times "addl\t%\[re\]?d\[ix\], %\[re\]?ax" 1
>> } } */
