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author | Nate Begeman <natebegeman@mac.com> | 2007-01-29 21:21:22 +0000 |
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committer | Nate Begeman <natebegeman@mac.com> | 2007-01-29 21:21:22 +0000 |
commit | 908049b7b6d089dde6f75f6ac47034150c948e7e (patch) | |
tree | 62cbc85238a5b3abfc00b0f3e476cf68005f9e05 /lib/Target/PowerPC/README.txt | |
parent | 1257c855d7546afc2705463d9ca913d405724738 (diff) | |
download | llvm-908049b7b6d089dde6f75f6ac47034150c948e7e.tar.gz llvm-908049b7b6d089dde6f75f6ac47034150c948e7e.tar.bz2 llvm-908049b7b6d089dde6f75f6ac47034150c948e7e.tar.xz |
Update some of the llvm in the readme
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33630 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/README.txt')
-rw-r--r-- | lib/Target/PowerPC/README.txt | 48 |
1 files changed, 23 insertions, 25 deletions
diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt index f4882729cd..1c3e204d9d 100644 --- a/lib/Target/PowerPC/README.txt +++ b/lib/Target/PowerPC/README.txt @@ -277,18 +277,16 @@ 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: - blr + 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 } |