ChangeLog:
2014-08-14 Zhenqiang Chen <zhenqiang.chen@arm.com>
* config/arm/arm.c (arm_option_override): Set max_insns_skipped
to MAX_INSN_PER_IT_BLOCK when optimize_size for THUMB2.
testsuite/ChangeLog:
2014-08-14 Zhenqiang Chen <zhenqiang.chen@arm.com>
* gcc.target/arm/max-insns-skipped.c: New test.
From-SVN: r213939
+2014-08-14 Zhenqiang Chen <zhenqiang.chen@arm.com>
+
+ * config/arm/arm.c (arm_option_override): Set max_insns_skipped
+ to MAX_INSN_PER_IT_BLOCK when optimize_size for THUMB2.
+
2014-08-13 Chen Gang gang.chen.5i5j@gmail.com
* microblaze/microblaze.md: Remove redundant '@' to avoid compiling
/* If optimizing for size, bump the number of instructions that we
are prepared to conditionally execute (even on a StrongARM). */
max_insns_skipped = 6;
+
+ /* For THUMB2, we limit the conditional sequence to one IT block. */
+ if (TARGET_THUMB2)
+ max_insns_skipped = MAX_INSN_PER_IT_BLOCK;
}
else
max_insns_skipped = current_tune->max_insns_skipped;
+2014-08-14 Zhenqiang Chen <zhenqiang.chen@arm.com>
+
+ * gcc.target/arm/max-insns-skipped.c: New test.
+
2014-08-14 Bin Cheng <bin.cheng@arm.com>
* c-c++-common/addrtmp.c: Add bind_pic_locally option.
--- /dev/null
+/* { dg-do assemble { target arm_thumb2 } } */
+/* { dg-options " -Os " } */
+
+int t (int a, int b, int c, int d)
+{
+ int r;
+ if (a > 0) {
+ r = a + b;
+ r += 0x456;
+ r *= 0x1234567;
+ }
+ else {
+ r = b - a;
+ r -= 0x123;
+ r *= 0x12387;
+ r += d;
+ }
+ return r;
+}
+
+/* { dg-final { object-size text <= 40 } } */