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llvm-svn: 26448
2006-03-01 06:36:20 +00:00 · 2006-03-01 06:36:20 +00:00 · 3cb349a068
parent 27f5345b1f
commit 3cb349a068
1 changed files with 18 additions and 0 deletions
--- a/llvm/lib/Target/PowerPC/README.txt
+++ b/llvm/lib/Target/PowerPC/README.txt
@ -434,3 +434,21 @@ int f(signed char *a, _Bool b, _Bool c) {
  if (c)  *a = t;
 }

+===-------------------------------------------------------------------------===
+
+This:
+int test(unsigned *P) { return *P >> 24; }
+
+Should compile to:
+
+_test:
+        lbz r3,0(r3)
+        blr
+
+not:
+
+_test:
+        lwz r2, 0(r3)
+        srwi r3, r2, 24
+        blr
+