* [PATCH] Fix for PR63595
@ 2014-10-24 9:44 Martin Liška
2014-10-24 10:12 ` Richard Biener
0 siblings, 1 reply; 2+ messages in thread
From: Martin Liška @ 2014-10-24 9:44 UTC (permalink / raw)
To: gcc-patch >> GCC Patches; +Cc: hubi >> Jan Hubicka
[-- Attachment #1: Type: text/plain, Size: 171 bytes --]
Hello.
Following patch contains addition of PHI result comparison in IPA ICF.
Boostrap works on x86_64-linux-pc, no regression observed.
Ready for trunk?
Thanks,
Martin
[-- Attachment #2: PR63595.changelog --]
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gcc/testsuite/ChangeLog:
2014-10-24 Martin Liska <mliska@suse.cz>
* gcc.dg/ipa/pr63595.c: New test.
gcc/ChangeLog:
2014-10-24 Martin Liska <mliska@suse.cz>
* ipa-icf.c (sem_function::compare_phi_node): PHI result comparison
added.
[-- Attachment #3: PR63595.patch --]
[-- Type: text/x-patch, Size: 3260 bytes --]
diff --git a/gcc/ipa-icf.c b/gcc/ipa-icf.c
index d1238a4..7456fec 100644
--- a/gcc/ipa-icf.c
+++ b/gcc/ipa-icf.c
@@ -869,6 +869,12 @@ sem_function::compare_phi_node (basic_block bb1, basic_block bb2)
phi1 = gsi_stmt (si1);
phi2 = gsi_stmt (si2);
+ tree phi_result1 = gimple_phi_result (phi1);
+ tree phi_result2 = gimple_phi_result (phi2);
+
+ if (!m_checker->compare_operand (phi_result1, phi_result2))
+ return return_false_with_msg ("PHI results are different");
+
size1 = gimple_phi_num_args (phi1);
size2 = gimple_phi_num_args (phi2);
diff --git a/gcc/testsuite/gcc.dg/ipa/pr63595.c b/gcc/testsuite/gcc.dg/ipa/pr63595.c
new file mode 100644
index 0000000..52851fb
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/ipa/pr63595.c
@@ -0,0 +1,65 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-ipa-icf-details" } */
+
+typedef int size_t;
+
+typedef struct TypHeader {
+ unsigned long size;
+ struct TypHeader * * ptr;
+ char name[3];
+ unsigned char type;
+} * TypHandle;
+
+__attribute__((noinline))
+static TypHandle Error(const char *str, unsigned long l1, unsigned long l2)
+{
+ return 0;
+}
+
+extern TypHandle (* EvTab[81]) ( TypHandle hd );
+extern TypHandle (*TabProd[28][28]) ( TypHandle, TypHandle );
+
+__attribute__((noinline))
+TypHandle FunOnRight (TypHandle hdCall)
+{
+ TypHandle hdRes;
+ TypHandle hdPnt;
+ TypHandle hdElm;
+
+
+ if ( ((hdCall)->size) != 3*((size_t)sizeof(TypHandle)) )
+ return Error("",0L,0L);
+ hdPnt = ((long)(((TypHandle*)((hdCall)->ptr))[1])&1 ? (((TypHandle*)((hdCall)->ptr))[1]) : (* EvTab[(((long)(((TypHandle*)((hdCall)->ptr))[1]) & 1) ? 1 : ((((TypHandle*)((hdCall)->ptr))[1])->type))])((((TypHandle*)((hdCall)->ptr))[1])));
+ hdElm = ((long)(((TypHandle*)((hdCall)->ptr))[2])&1 ? (((TypHandle*)((hdCall)->ptr))[2]) : (* EvTab[(((long)(((TypHandle*)((hdCall)->ptr))[2]) & 1) ? 1 : ((((TypHandle*)((hdCall)->ptr))[2])->type))])((((TypHandle*)((hdCall)->ptr))[2])));
+
+
+ hdRes = ((*TabProd[(((long)(hdPnt) & 1) ? 1 : ((hdPnt)->type))][(((long)(hdElm) & 1) ? 1 : ((hdElm)->type))])((hdPnt),(hdElm)));
+ return hdRes;
+}
+
+__attribute__((noinline))
+TypHandle FunOnLeft (TypHandle hdCall)
+{
+ TypHandle hdRes;
+ TypHandle hdPnt;
+ TypHandle hdElm;
+
+
+ if ( ((hdCall)->size) != 3*((size_t)sizeof(TypHandle)) )
+ return Error("",0L,0L);
+ hdPnt = ((long)(((TypHandle*)((hdCall)->ptr))[1])&1 ? (((TypHandle*)((hdCall)->ptr))[1]) : (* EvTab[(((long)(((TypHandle*)((hdCall)->ptr))[1]) & 1) ? 1 : ((((TypHandle*)((hdCall)->ptr))[1])->type))])((((TypHandle*)((hdCall)->ptr))[1])));
+ hdElm = ((long)(((TypHandle*)((hdCall)->ptr))[2])&1 ? (((TypHandle*)((hdCall)->ptr))[2]) : (* EvTab[(((long)(((TypHandle*)((hdCall)->ptr))[2]) & 1) ? 1 : ((((TypHandle*)((hdCall)->ptr))[2])->type))])((((TypHandle*)((hdCall)->ptr))[2])));
+
+
+ hdRes = ((*TabProd[(((long)(hdElm) & 1) ? 1 : ((hdElm)->type))][(((long)(hdPnt) & 1) ? 1 : ((hdPnt)->type))])((hdElm),(hdPnt)));
+ return hdRes;
+}
+
+int main()
+{
+ return 0;
+}
+
+/* { dg-final { scan-ipa-dump "Equal symbols: 0" "icf" } } */
+/* { dg-final { scan-ipa-dump "PHI results are different" "icf" } } */
+/* { dg-final { cleanup-ipa-dump "icf" } } */
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] Fix for PR63595
2014-10-24 9:44 [PATCH] Fix for PR63595 Martin Liška
@ 2014-10-24 10:12 ` Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2014-10-24 10:12 UTC (permalink / raw)
To: Martin Liška
Cc: gcc-patch >> GCC Patches, hubi >> Jan Hubicka
On Fri, Oct 24, 2014 at 11:35 AM, Martin Liška <mliska@suse.cz> wrote:
> Hello.
>
> Following patch contains addition of PHI result comparison in IPA ICF.
> Boostrap works on x86_64-linux-pc, no regression observed.
>
> Ready for trunk?
Ok.
Thanks,
Richard.
> Thanks,
> Martin
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