Changes in directory llvm/lib/Target/X86:
README.txt updated: 1.60 -> 1.61
---
Log message:
Updates.
---
Diffs of the changes: (+3 -20)
README.txt | 23 +++--------------------
1 files changed, 3 insertions(+), 20 deletions(-)
Index: llvm/lib/Target/X86/README.txt
diff -u llvm/lib/Target/X86/README.txt:1.60 llvm/lib/Target/X86/README.txt:1.61
--- llvm/lib/Target/X86/README.txt:1.60 Wed Feb 22 23:17:43 2006
+++ llvm/lib/Target/X86/README.txt Sat Feb 25 04:04:07 2006
@@ -157,6 +157,7 @@
Use push/pop instructions in prolog/epilog sequences instead of stores off
ESP (certain code size win, perf win on some [which?] processors).
+Also, it appears icc use push for parameter passing. Need to investigate.
//===---------------------------------------------------------------------===//
@@ -411,22 +412,6 @@
//===---------------------------------------------------------------------===//
-Easy: Global addresses are not always allowed as immediates. For this:
-
-int dst = 0; int *ptr = 0;
-void foo() { ptr = &dst; }
-
-we get this:
-
-_foo:
- movl $_dst, %eax
- movl %eax, _ptr
- ret
-
-When: "movl $_dst, _ptr" is sufficient.
-
-//===---------------------------------------------------------------------===//
-
Instead of the following for memset char*, 1, 10:
movl $16843009, 4(%edx)
@@ -505,10 +490,6 @@
//===---------------------------------------------------------------------===//
-Select (add, x, GlobalAddress) to ADD32ri, etc. when it's appropriate.
-
-//===---------------------------------------------------------------------===//
-
The first BB of this code:
declare bool %foo()
@@ -533,4 +514,6 @@
It would be better to emit "cmp %al, 1" than a xor and test.
+//===---------------------------------------------------------------------===//
+Enable X86InstrInfo::convertToThreeAddress().
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