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[FastISel][X86] Fix previous refactoring commit (r211077)

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Overlooked that fcmp_une uses an "or" instead of an "and" for combining the
flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211104 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Juergen Ributzka 2014-06-17 14:47:45 +00:00
parent 199da600f3
commit 1d5ff6bb7a
2 changed files with 5 additions and 5 deletions
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8
lib/Target/X86/X86FastISel.cpp
View File

@ -1049,9 +1049,9 @@ bool X86FastISel::X86SelectCmp(const Instruction *I) {
return false;
// FCMP_OEQ and FCMP_UNE cannot be checked with a single instruction.
static unsigned SETFOpcTable[2][2] = {
{ X86::SETEr, X86::SETNPr },
{ X86::SETNEr, X86::SETPr }
static unsigned SETFOpcTable[2][3] = {
{ X86::SETEr, X86::SETNPr, X86::AND8rr },
{ X86::SETNEr, X86::SETPr, X86::OR8rr }
};
unsigned *SETFOpc = nullptr;
switch (CI->getPredicate()) {
@ -1071,7 +1071,7 @@ bool X86FastISel::X86SelectCmp(const Instruction *I) {
FlagReg1);
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(SETFOpc[1]),
FlagReg2);
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(X86::AND8rr),
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(SETFOpc[2]),
ResultReg).addReg(FlagReg1).addReg(FlagReg2);
UpdateValueMap(I, ResultReg);
return true;

2
test/CodeGen/X86/fast-isel-cmp.ll
View File

@ -155,7 +155,7 @@ define zeroext i1 @fcmp_une(float %x, float %y) {
; FAST: ucomiss %xmm1, %xmm0
; FAST-NEXT: setne %al
; FAST-NEXT: setp %cl
; FAST-NEXT: andb %al, %cl
; FAST-NEXT: orb %al, %cl
%1 = fcmp une float %x, %y
ret i1 %1
}