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-rw-r--r--gcc/ChangeLog8
-rw-r--r--gcc/params.def2
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.dg/pr47555.c36
4 files changed, 50 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 27d06e785ab..8f43325b6e7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2011-02-01 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/47555
+ Revert
+ 2010-07-15 Sebastian Pop <sebastian.pop@amd.com>
+
+ * params.def (PARAM_SCEV_MAX_EXPR_SIZE): Bump the value to 100.
+
2011-02-01 Sebastien Bourdeauducq <sebastien@milkymist.org>
PR gcc/46692
diff --git a/gcc/params.def b/gcc/params.def
index 96dc858cf82..3138bc22cd7 100644
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -481,7 +481,7 @@ DEFPARAM(PARAM_IV_ALWAYS_PRUNE_CAND_SET_BOUND,
DEFPARAM(PARAM_SCEV_MAX_EXPR_SIZE,
"scev-max-expr-size",
"Bound on size of expressions used in the scalar evolutions analyzer",
- 100, 0, 0)
+ 20, 0, 0)
DEFPARAM(PARAM_OMEGA_MAX_VARS,
"omega-max-vars",
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 8164cf4c198..d047f874911 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,10 @@
2011-02-01 Richard Guenther <rguenther@suse.de>
+ PR tree-optimization/47555
+ * gcc.dg/pr47555.c: New testcase.
+
+2011-02-01 Richard Guenther <rguenther@suse.de>
+
PR tree-optimization/47541
* g++.dg/torture/pr47541.C: New testcase.
diff --git a/gcc/testsuite/gcc.dg/pr47555.c b/gcc/testsuite/gcc.dg/pr47555.c
new file mode 100644
index 00000000000..d65265274f9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr47555.c
@@ -0,0 +1,36 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+#define FILL_BACK *ptrRGB++=0; *ptrRGB++=0; *ptrRGB++=0;
+
+
+void uncompact(unsigned char* ptrRGB, const unsigned int* ptrSrc, const unsigned char* ptrRGBcompact, int line, int nbPixLeft)
+{
+
+#define BIT_2_RGB32 \
+ if ((v & 0x00000001)){ nbPixLeft--; *ptrRGB++ = *ptrRGBcompact++; *ptrRGB++ = *ptrRGBcompact++; *ptrRGB++ = *ptrRGBcompact++; } \
+ else{ FILL_BACK } \
+ v >>= 1;
+#define BIT_2_RGB16 \
+ if ((v16 & 0x0001)){ nbPixLeft--; *ptrRGB++ = *ptrRGBcompact++; *ptrRGB++ = *ptrRGBcompact++; *ptrRGB++ = *ptrRGBcompact++; } \
+ else{ FILL_BACK } \
+ v16 >>= 1;
+
+ int x;
+ unsigned int v, *ptrSrc32bits=(unsigned int*)ptrSrc;
+ unsigned short v16,*ptrSrc16bits;
+
+ for(x=0; x<line; x++) {
+ v = *ptrSrc32bits++;
+ BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32
+ BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32
+ BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32
+ BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32
+ }
+
+ ptrSrc16bits=(unsigned short *)ptrSrc32bits;
+ v16 = *ptrSrc16bits++;
+ BIT_2_RGB16 BIT_2_RGB16 BIT_2_RGB16 BIT_2_RGB16 BIT_2_RGB16 BIT_2_RGB16
+ BIT_2_RGB16 BIT_2_RGB16 BIT_2_RGB16 BIT_2_RGB16 BIT_2_RGB16 BIT_2_RGB16
+
+}