Changes in directory llvm/lib/Target:
README.txt updated: 1.56 -> 1.57
---
Log message:
This is implemented. We now generate:
entry:
icmp ugt i32 %x, 4 ; <i1>:0 [#uses=1]
br i1 %0, label %cond_true, label %cond_false
cond_true: ; preds = %entry
%tmp1 = tail call i32 (...)* @bar( i32 12 ) ; <i32>
[#uses=0]
ret void
cond_false: ; preds = %entry
switch i32 %x, label %cond_true15 [
i32 4, label %cond_true3
i32 3, label %cond_true7
i32 2, label %cond_true11
i32 0, label %cond_false17
]
...
---
Diffs of the changes: (+0 -40)
README.txt | 39 ---------------------------------------
1 files changed, 39 deletions(-)
Index: llvm/lib/Target/README.txt
diff -u llvm/lib/Target/README.txt:1.56 llvm/lib/Target/README.txt:1.57
--- llvm/lib/Target/README.txt:1.56 Wed Feb 14 21:39:18 2007
+++ llvm/lib/Target/README.txt Sun Mar 18 09:37:20 2007
@@ -348,46 +348,6 @@
//===---------------------------------------------------------------------===//
--predsimplify should transform this:
-
-void bad(unsigned x)
-{
- if (x > 4)
- bar(12);
- else if (x > 3)
- bar(523);
- else if (x > 2)
- bar(36);
- else if (x > 1)
- bar(65);
- else if (x > 0)
- bar(45);
- else
- bar(367);
-}
-
-into:
-
-void good(unsigned x)
-{
- if (x == 4)
- bar(523);
- else if (x == 3)
- bar(36);
- else if (x == 2)
- bar(65);
- else if (x == 1)
- bar(45);
- else if (x == 0)
- bar(367);
- else
- bar(12);
-}
-
-to enable further optimizations.
-
-//===---------------------------------------------------------------------===//
-
Consider:
typedef unsigned U32;
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