Chris Lattner 3b2c1d95a2 canonicalize x <u 1 -> x == 0. On this testcase: ... unsigned long long g; unsigned long foo (unsigned long a) { return (a >= g) ? 1 : 0; } It changes the ppc code from: _foo: .LBB_foo_0: ; entry mflr r11 stw r11, 8(r1) bl "L00000$pb" "L00000$pb": mflr r2 addis r2, r2, ha16(L_g$non_lazy_ptr-"L00000$pb") lwz r2, lo16(L_g$non_lazy_ptr-"L00000$pb")(r2) lwz r4, 0(r2) lwz r2, 4(r2) cmplw cr0, r3, r2 li r2, 1 li r3, 0 bge .LBB_foo_2 ; entry .LBB_foo_1: ; entry or r2, r3, r3 .LBB_foo_2: ; entry cmplwi cr0, r4, 1 li r3, 1 li r5, 0 blt .LBB_foo_4 ; entry .LBB_foo_3: ; entry or r3, r5, r5 .LBB_foo_4: ; entry cmpwi cr0, r4, 0 beq .LBB_foo_6 ; entry .LBB_foo_5: ; entry or r2, r3, r3 .LBB_foo_6: ; entry rlwinm r3, r2, 0, 31, 31 lwz r11, 8(r1) mtlr r11 blr to: _foo: .LBB_foo_0: ; entry mflr r11 stw r11, 8(r1) bl "L00000$pb" "L00000$pb": mflr r2 addis r2, r2, ha16(L_g$non_lazy_ptr-"L00000$pb") lwz r2, lo16(L_g$non_lazy_ptr-"L00000$pb")(r2) lwz r4, 0(r2) lwz r2, 4(r2) cmplw cr0, r3, r2 li r2, 1 li r3, 0 bge .LBB_foo_2 ; entry .LBB_foo_1: ; entry or r2, r3, r3 .LBB_foo_2: ; entry cntlzw r3, r4 srwi r3, r3, 5 cmpwi cr0, r4, 0 beq .LBB_foo_4 ; entry .LBB_foo_3: ; entry or r2, r3, r3 .LBB_foo_4: ; entry rlwinm r3, r2, 0, 31, 31 lwz r11, 8(r1) mtlr r11 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21241 91177308-0d34-0410-b5e6-96231b3b80d8		2005-04-12 00:28:49 +00:00
..
Analysis	Don't make this require loopsimplify. It works BETTER with loop simplify	2005-04-06 21:45:00 +00:00
Archive	Implement an isBytecodeArchive method to determine if an archive contains	2005-02-26 22:00:32 +00:00
AsmParser	don't crash in some bad cases.	2005-03-23 01:29:26 +00:00
Bytecode	This mega patch converts us from using Function::a{iterator|begin|end} to	2005-03-15 04:54:21 +00:00
CodeGen	canonicalize x <u 1 -> x == 0. On this testcase:	2005-04-12 00:28:49 +00:00
Debugger	Correct the comments and file header.	2004-12-23 21:16:46 +00:00
ExecutionEngine	Fix the missing symbols problem Bill was hitting. Patch contributed by	2005-03-17 15:38:16 +00:00
Linker	fix some 80 column violations	2005-03-15 23:03:34 +00:00
Support	Timers SHOULD NOT record the time taken to count the bytes allocated in the heap!	2005-03-22 03:20:38 +00:00
System	Eliminate tabs	2005-04-11 03:44:22 +00:00
Target	Implement bitfield clears	2005-04-12 00:10:02 +00:00
Transforms	Fix bug: InstCombine/2005-05-07-UDivSelectCrash.ll	2005-04-08 04:03:26 +00:00
VMCore	First step in adding pcmarker intrinsic. Second step (soon) is adding backend support.	2005-03-28 20:05:49 +00:00
Makefile	Add the Linker library	2004-11-14 21:54:41 +00:00