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PPC popcnt[dw] do not have record forms

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The instruction definitions incorrectly specified that popcntd and popcntw have
record forms; they do not. This mistake was causing invalid code generation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195272 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hal Finkel 2013-11-20 20:54:55 +00:00
parent aefd8db634
commit 1e81642366
2 changed files with 22 additions and 6 deletions
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12
lib/Target/PowerPC/PPCInstr64Bit.td
View File

@ -529,16 +529,16 @@ defm SRADI : XSForm_1rc<31, 413, (outs g8rc:$rA), (ins g8rc:$rS, u6imm:$SH),
defm CNTLZD : XForm_11r<31, 58, (outs g8rc:$rA), (ins g8rc:$rS),
"cntlzd", "$rA, $rS", IntGeneral,
[(set i64:$rA, (ctlz i64:$rS))]>;
defm POPCNTD : XForm_11r<31, 506, (outs g8rc:$rA), (ins g8rc:$rS),
"popcntd", "$rA, $rS", IntGeneral,
[(set i64:$rA, (ctpop i64:$rS))]>;
def POPCNTD : XForm_11<31, 506, (outs g8rc:$rA), (ins g8rc:$rS),
"popcntd $rA, $rS", IntGeneral,
[(set i64:$rA, (ctpop i64:$rS))]>;
// popcntw also does a population count on the high 32 bits (storing the
// results in the high 32-bits of the output). We'll ignore that here (which is
// safe because we never separately use the high part of the 64-bit registers).
defm POPCNTW : XForm_11r<31, 378, (outs gprc:$rA), (ins gprc:$rS),
"popcntw", "$rA, $rS", IntGeneral,
[(set i32:$rA, (ctpop i32:$rS))]>;
def POPCNTW : XForm_11<31, 378, (outs gprc:$rA), (ins gprc:$rS),
"popcntw $rA, $rS", IntGeneral,
[(set i32:$rA, (ctpop i32:$rS))]>;
defm DIVD : XOForm_1r<31, 489, 0, (outs g8rc:$rT), (ins g8rc:$rA, g8rc:$rB),
"divd", "$rT, $rA, $rB", IntDivD,

16
test/CodeGen/PowerPC/optcmp.ll
View File

@ -134,3 +134,19 @@ entry:
; CHECK-NOT: fsubs. 0, 1, 2
; CHECK: stfs 0, 0(5)
}
declare i64 @llvm.ctpop.i64(i64);
define signext i64 @fooct(i64 signext %a, i64 signext %b, i64* nocapture %c) #0 {
entry:
%sub = sub nsw i64 %a, %b
%subc = call i64 @llvm.ctpop.i64(i64 %sub)
store i64 %subc, i64* %c, align 4
%cmp = icmp sgt i64 %subc, 0
%cond = select i1 %cmp, i64 %a, i64 %b
ret i64 %cond
; CHECK: @fooct
; CHECK-NOT: popcntd.
}