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PPC pre-increment load instructions do not have side effects

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A few were missed in r178972.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178973 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hal Finkel 2013-04-07 06:30:47 +00:00
parent fa1d102a05
commit 3aea7cb7b2
1 changed files with 3 additions and 2 deletions

5
lib/Target/PowerPC/PPCInstr64Bit.td

@ -549,7 +549,7 @@ def LWAX : XForm_1<31, 341, (outs G8RC:$rD), (ins memrr:$src),
PPC970_DGroup_Cracked;
// Update forms.
let mayLoad = 1 in {
let mayLoad = 1, neverHasSideEffects = 1 in {
def LHAU8 : DForm_1<43, (outs G8RC:$rD, ptr_rc_nor0:$ea_result),
(ins memri:$addr),
"lhau $rD, $addr", LdStLHAU,
@ -666,7 +666,7 @@ def LDBRX : XForm_1<31, 532, (outs G8RC:$rD), (ins memrr:$src),
"ldbrx $rD, $src", LdStLoad,
[(set i64:$rD, (PPClbrx xoaddr:$src, i64))]>, isPPC64;
let mayLoad = 1, neverHasSideEffects = 1 in
let mayLoad = 1, neverHasSideEffects = 1 in {
def LDU : DSForm_1<58, 1, (outs G8RC:$rD, ptr_rc_nor0:$ea_result), (ins memrix:$addr),
"ldu $rD, $addr", LdStLDU,
[]>, RegConstraint<"$addr.reg = $ea_result">, isPPC64,
@ -678,6 +678,7 @@ def LDUX : XForm_1<31, 53, (outs G8RC:$rD, ptr_rc_nor0:$ea_result),
[]>, RegConstraint<"$addr.ptrreg = $ea_result">,
NoEncode<"$ea_result">, isPPC64;
}
}
def : Pat<(PPCload ixaddr:$src),
(LD ixaddr:$src)>;