Changes in directory llvm/lib/Target/X86:
README.txt updated: 1.36 -> 1.37
---
Log message:
Another regression from the pattern isel
---
Diffs of the changes: (+16 -0)
README.txt | 16 ++++++++++++++++
1 files changed, 16 insertions(+)
Index: llvm/lib/Target/X86/README.txt
diff -u llvm/lib/Target/X86/README.txt:1.36 llvm/lib/Target/X86/README.txt:1.37
--- llvm/lib/Target/X86/README.txt:1.36 Tue Jan 31 18:15:53 2006
+++ llvm/lib/Target/X86/README.txt Tue Jan 31 19:44:25 2006
@@ -288,3 +288,19 @@
This is bad for register pressure, though the dag isel is producing a
better schedule. :)
+
+//===---------------------------------------------------------------------===//
+
+This testcase should have no SSE instructions in it, and only one load from
+a constant pool:
+
+double %test3(bool %B) {
+ %C = select bool %B, double 123.412, double 523.01123123
+ ret double %C
+}
+
+Currently, the select is being lowered, which prevents the dag combiner from
+turning 'select (load CPI1), (load CPI2)' -> 'load (select CPI1, CPI2)'
+
+The pattern isel got this one right.
+
_______________________________________________
llvm-commits mailing list
llvm-commits@cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
