+2004-01-27 Eric Botcazou <ebotcazou@libertysurf.fr>
+
+ PR target/10904
+ PR target/13058
+ * config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): New.
+ Forbid mode changes from SImode for lower FP regs if ARCH64.
+
2004-01-27 J"orn Rennecke <joern.rennecke@superh.com>
* Makefile.in (bt-load.o): Depend on except.h.
{-1, -1, -1, 0x20}, /* GENERAL_OR_EXTRA_FP_REGS */ \
{-1, -1, -1, 0x3f}} /* ALL_REGS */
+/* Defines invalid mode changes. Borrowed from pa64-regs.h.
+
+ SImode loads to floating-point registers are not zero-extended.
+ The definition for LOAD_EXTEND_OP specifies that integer loads
+ narrower than BITS_PER_WORD will be zero-extended. As a result,
+ we inhibit changes from SImode unless they are to a mode that is
+ identical in size. */
+
+#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \
+ (TARGET_ARCH64 \
+ && (FROM) == SImode \
+ && GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) \
+ ? reg_classes_intersect_p (CLASS, FP_REGS) : 0)
+
/* The same information, inverted:
Return the class number of the smallest class containing
reg number REGNO. This could be a conditional expression
+2004-01-27 Eric Botcazou <ebotcazou@libertysurf.fr>
+
+ * gcc.dg/20040127-1.c: New test.
+ * gcc.dg/20040127-2.c: New test.
+
2004-01-26 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* objc.dg/stret-1.m (glob): Renamed to globa.
--- /dev/null
+/* PR target/10904 */
+/* Origin: <kminola@eng.umd.edu> */
+
+/* Verify that the register allocator correctly aligns
+ floating-point registers on SPARC64. */
+
+/* { dg-do assemble } */
+/* { dg-options "-O2" } */
+
+extern int foo1();
+extern int foo2();
+
+void foo(int n, int b)
+{
+ int i, a;
+
+ foo1();
+
+ a = (long)(b * ((double) 0.1));
+
+ for (i=0; i < n; i++) {
+ foo2(a);
+ }
+}
--- /dev/null
+/* PR target/13058 */
+/* Origin: Lloyd Parkes <lloyd@must-have-coffee.gen.nz> */
+/* Reduced testcase by Falk Hueffner <falk@debian.org> */
+
+/* Verify that the register allocator correctly aligns
+ floating-point registers on SPARC64. */
+
+/* { dg-do compile } */
+/* { dg-options "-O" } */
+
+typedef struct { int ThumbnailSize; } ImageInfo_t;
+
+double ConvertAnyFormat(void)
+{
+ return 0;
+}
+
+void ProcessExifDir(ImageInfo_t *ImageInfoP, int NumDirEntries)
+{
+ unsigned int ThumbnailSize;
+
+ for (; NumDirEntries;) {
+ Get16u();
+ switch (NumDirEntries) {
+ case 0x0201:
+ case 0x0202:
+ ThumbnailSize = ConvertAnyFormat();
+ }
+ }
+
+ ImageInfoP->ThumbnailSize = ThumbnailSize;
+}