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arm.c (arm_select_cc_mode): Before calling arm_select_dominance_cc_mode for AND or IOR operations...

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gcc/
	* config/arm/arm.c (arm_select_cc_mode): Before calling
	arm_select_dominance_cc_mode for AND or IOR operations, ensure
	that op is NE or EQ.

gcc/testsuite/
	* gcc.c-torture/compile/20101217-1.c: New test.

From-SVN: r167981
This commit is contained in:
Bernd Schmidt 2010-12-17 13:48:40 +00:00 • committed by Bernd Schmidt
parent 8b432c8b83
commit 4d5d65862a
4 changed files with 48 additions and 0 deletions
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6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2010-12-17 Bernd Schmidt <bernds@codesourcery.com>
* config/arm/arm.c (arm_select_cc_mode): Before calling
arm_select_dominance_cc_mode for AND or IOR operations, ensure
that op is NE or EQ.
2010-12-17 Alexander Monakov <amonakov@ispras.ru>
PR middle-end/46761

2
gcc/config/arm/arm.c
View file

@ -10602,12 +10602,14 @@ arm_select_cc_mode (enum rtx_code op, rtx x, rtx y)
/* Alternate canonicalizations of the above. These are somewhat cleaner. */
if (GET_CODE (x) == AND
&& (op == EQ || op == NE)
&& COMPARISON_P (XEXP (x, 0))
&& COMPARISON_P (XEXP (x, 1)))
return arm_select_dominance_cc_mode (XEXP (x, 0), XEXP (x, 1),
DOM_CC_X_AND_Y);
if (GET_CODE (x) == IOR
&& (op == EQ || op == NE)
&& COMPARISON_P (XEXP (x, 0))
&& COMPARISON_P (XEXP (x, 1)))
return arm_select_dominance_cc_mode (XEXP (x, 0), XEXP (x, 1),

4
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,7 @@
2010-12-17 Bernd Schmidt <bernds@codesourcery.com>
* gcc.c-torture/compile/20101217-1.c: New test.
2010-12-17 Alexander Monakov <amonakov@ispras.ru>
PR middle-end/46761

36
gcc/testsuite/gcc.c-torture/compile/20101217-1.c Normal file
View file

@ -0,0 +1,36 @@
/* Testcase provided by HUAWEI. */
#include <stdio.h>
int main()
{
int cur_k;
int cur_j=0;
int cur_i=28;
unsigned char temp_data[8];
unsigned int Data_Size=20;
for (cur_k=0;cur_j<7;cur_j++,cur_i++) {
if (cur_j%2==0) {
temp_data[cur_k++]=0;
}
if (cur_k==7) {
for (;cur_k>0;cur_k--) {
if (cur_k>2) {
if ((temp_data[7-cur_k]=='n' || temp_data[7-cur_k]=='N' ) && (temp_data[7-cur_k+1]=='a' || temp_data[7-cur_k+1]=='A' )) {
break;
}
}
if (cur_k==1) {
if (temp_data[7-cur_k]=='n' || temp_data[7-cur_k]=='N' ) {
break;
}
}
}
if (cur_k==7) {
} else {
if (cur_k>0)
printf("dfjk");
}
}
}
return 0;
}