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authorHans-Peter Nilsson <hp@bitrange.com>2024-05-08 04:11:20 +0200
committerHans-Peter Nilsson <hp@bitrange.com>2024-05-08 04:11:20 +0200
commitf6ce85502eb2e4e7bbd9b3c6c1c065a004f8f531 (patch)
tree14712ba93685760dbb4f6f1759b3a4cc186a84f8 /gcc
parente60032b382364897a58e67994baac896bcd03327 (diff)
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Revert "Revert "testsuite/gcc.target/cris/pr93372-2.c: Handle xpass from combine improvement""
This reverts commit 39f81924d88e3cc197fc3df74204c9b5e01e12f7.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/testsuite/gcc.target/cris/pr93372-2.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/gcc/testsuite/gcc.target/cris/pr93372-2.c b/gcc/testsuite/gcc.target/cris/pr93372-2.c
index 912069c..2ef6471 100644
--- a/gcc/testsuite/gcc.target/cris/pr93372-2.c
+++ b/gcc/testsuite/gcc.target/cris/pr93372-2.c
@@ -1,19 +1,20 @@
/* Check that eliminable compare-instructions are eliminated. */
/* { dg-do compile } */
/* { dg-options "-O2" } */
-/* { dg-final { scan-assembler-not "\tcmp|\ttest" { xfail *-*-* } } } */
-/* { dg-final { scan-assembler-not "\tnot" { xfail cc0 } } } */
-/* { dg-final { scan-assembler-not "\tlsr" { xfail cc0 } } } */
+/* { dg-final { scan-assembler-not "\tcmp|\ttest" } } */
+/* { dg-final { scan-assembler-not "\tnot" } } */
+/* { dg-final { scan-assembler-not "\tlsr" } } */
+/* We should get just one move, storing the result into *d. */
+/* { dg-final { scan-assembler-times "\tmove" 1 } } */
int f(int a, int b, int *d)
{
int c = a - b;
- /* Whoops! We get a cmp.d with the original operands here. */
+ /* We used to get a cmp.d with the original operands here. */
*d = (c == 0);
- /* Whoops! While we don't get a test.d for the result here for cc0,
- we get a sequence of insns: a move, a "not" and a shift of the
- subtraction-result, where a simple "spl" would have done. */
+ /* We used to get a suboptimal sequence, but now we get the optimal "sge"
+ (a.k.a "spl") re-using flags from the subtraction. */
return c >= 0;
}