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Update some of the llvm in the readme

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llvm-svn: 33630
This commit is contained in:
Nate Begeman 2007-01-29 21:21:22 +00:00
parent 05e9fd0443
commit 484e7a8b01
1 changed files with 23 additions and 25 deletions
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46
lib/Target/PowerPC/README.txt
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@ -277,17 +277,15 @@ bool %test(ulong %x) {
into "if x.high == 0", not:
_test:
addi r2, r3, -1
cntlzw r2, r2
cntlzw r3, r3
cntlzw r2, r3
xori r3, r3, 1
cmplwi cr0, r3, 0
srwi r2, r2, 5
srwi r4, r3, 5
li r3, 0
cmpwi cr0, r2, 0
bne cr0, LBB1_2 ;
LBB1_1:
or r3, r4, r4
LBB1_2:
beq cr0, LBB1_2 ;entry
LBB1_1: ;entry
mr r3, r2
LBB1_2: ;entry
blr
noticed in 2005-05-11-Popcount-ffs-fls.c.
@ -487,23 +485,23 @@ sounds like we need to get the 64-bit register classes going.
===-------------------------------------------------------------------------===
%struct.B = type { ubyte, [3 x ubyte] }
%struct.B = type { i8, [3 x i8] }
void %foo(%struct.B* %b) {
define void @bar(%struct.B* %b) {
entry:
%tmp = cast %struct.B* %b to uint* ; <uint*> [#uses=1]
%tmp = load uint* %tmp ; <uint> [#uses=1]
%tmp3 = cast %struct.B* %b to uint* ; <uint*> [#uses=1]
%tmp4 = load uint* %tmp3 ; <uint> [#uses=1]
%tmp8 = cast %struct.B* %b to uint* ; <uint*> [#uses=2]
%tmp9 = load uint* %tmp8 ; <uint> [#uses=1]
%tmp4.mask17 = shl uint %tmp4, ubyte 1 ; <uint> [#uses=1]
%tmp1415 = and uint %tmp4.mask17, 2147483648 ; <uint> [#uses=1]
%tmp.masked = and uint %tmp, 2147483648 ; <uint> [#uses=1]
%tmp11 = or uint %tmp1415, %tmp.masked ; <uint> [#uses=1]
%tmp12 = and uint %tmp9, 2147483647 ; <uint> [#uses=1]
%tmp13 = or uint %tmp12, %tmp11 ; <uint> [#uses=1]
store uint %tmp13, uint* %tmp8
%tmp = bitcast %struct.B* %b to i32* ; <uint*> [#uses=1]
%tmp = load i32* %tmp ; <uint> [#uses=1]
%tmp3 = bitcast %struct.B* %b to i32* ; <uint*> [#uses=1]
%tmp4 = load i32* %tmp3 ; <uint> [#uses=1]
%tmp8 = bitcast %struct.B* %b to i32* ; <uint*> [#uses=2]
%tmp9 = load i32* %tmp8 ; <uint> [#uses=1]
%tmp4.mask17 = shl i32 %tmp4, i8 1 ; <uint> [#uses=1]
%tmp1415 = and i32 %tmp4.mask17, 2147483648 ; <uint> [#uses=1]
%tmp.masked = and i32 %tmp, 2147483648 ; <uint> [#uses=1]
%tmp11 = or i32 %tmp1415, %tmp.masked ; <uint> [#uses=1]
%tmp12 = and i32 %tmp9, 2147483647 ; <uint> [#uses=1]
%tmp13 = or i32 %tmp12, %tmp11 ; <uint> [#uses=1]
store i32 %tmp13, i32* %tmp8
ret void
}