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re PR middle-end/78691 (ICE compiling Linux boot code) 

PR tree-optimization/78691
	* match.pd ((convert1 (minmax ((convert2 (x) c)))) -> minmax (x c)):
	Require integral type for the outer expression.
	gcc/testsuite
	PR tree-optimization/78691
	* gcc.target/i386/pr78691-i386.c: New test.
	* gcc.target/powerpc/pr78691-ppc.c: New test.

From-SVN: r243335
This commit is contained in:
Bin Cheng 2016-12-07 10:14:58 +00:00 committed by Bin Cheng
parent 81a58ffbb7
commit ebf4173488
5 changed files with 46 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2016-12-07 Bin Cheng <bin.cheng@arm.com>
PR tree-optimization/78691
* match.pd ((convert1 (minmax ((convert2 (x) c)))) -> minmax (x c)):
Require integral type for the outer expression.
2016-12-07 Naveen H.S <Naveen.Hurugalawadi@cavium.com>
* config/aarch64/aarch64.c

3
gcc/match.pd
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@ -1378,7 +1378,8 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(for minmax (min max)
(simplify
(convert (minmax@0 (convert @1) INTEGER_CST@2))
(if (types_match (@1, type) && int_fits_type_p (@2, type)
(if (INTEGRAL_TYPE_P (type)
&& types_match (@1, type) && int_fits_type_p (@2, type)
&& TYPE_SIGN (TREE_TYPE (@0)) == TYPE_SIGN (type)
&& TYPE_PRECISION (TREE_TYPE (@0)) > TYPE_PRECISION (type))
(minmax @1 (convert @2)))))

6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2016-12-07 Bin Cheng <bin.cheng@arm.com>
PR tree-optimization/78691
* gcc.target/i386/pr78691-i386.c: New test.
* gcc.target/powerpc/pr78691-ppc.c: New test.
2016-12-07 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* gcc.target/i386/pr70322-1.c: Add -mno-stackrealign to dg-options.

14
gcc/testsuite/gcc.target/i386/pr78691-i386.c Normal file
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@ -0,0 +1,14 @@
/* PR tree-optimization/78691 */
/* { dg-options "-Os -m16" } */
int fn1(char *p1, char *p2) {
int a;
for (;;)
switch (*p2) {
case 'c':
while (--a > 0)
*p1++ = ' ';
p1++;
a--;
}
}

18
gcc/testsuite/gcc.target/powerpc/pr78691-ppc.c Normal file
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@ -0,0 +1,18 @@
/* PR tree-optimization/78691 */
/* { dg-options "-Os -m32" } */
int *b;
int fn1() {
char *c;
int a;
for (;;)
switch (*b) {
case 'c':
while (--a > 0)
*c++ = ' ';
c++;
if (a)
a = sizeof(void *);
}
}