Skip to content

[GISel] Use getScalarSizeInBits in LegalizerHelper::lowerBitCount #168584

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Nov 18, 2025
+3 −3
Merged

[GISel] Use getScalarSizeInBits in LegalizerHelper::lowerBitCount #168584

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 3 additions & 3 deletions llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7609,7 +7609,7 @@ LegalizerHelper::lowerBitCount(MachineInstr &MI) {
}
case TargetOpcode::G_CTLZ: {
auto [DstReg, DstTy, SrcReg, SrcTy] = MI.getFirst2RegLLTs();
unsigned Len = SrcTy.getSizeInBits();
unsigned Len = SrcTy.getScalarSizeInBits();

if (isSupported({TargetOpcode::G_CTLZ_ZERO_UNDEF, {DstTy, SrcTy}})) {
// If CTLZ_ZERO_UNDEF is supported, emit that and a select for zero.
Expand Down Expand Up @@ -7657,7 +7657,7 @@ LegalizerHelper::lowerBitCount(MachineInstr &MI) {
case TargetOpcode::G_CTTZ: {
auto [DstReg, DstTy, SrcReg, SrcTy] = MI.getFirst2RegLLTs();

unsigned Len = SrcTy.getSizeInBits();
unsigned Len = SrcTy.getScalarSizeInBits();
if (isSupported({TargetOpcode::G_CTTZ_ZERO_UNDEF, {DstTy, SrcTy}})) {
// If CTTZ_ZERO_UNDEF is legal or custom, emit that and a select with
// zero.
Expand Down Expand Up @@ -7695,7 +7695,7 @@ LegalizerHelper::lowerBitCount(MachineInstr &MI) {
case TargetOpcode::G_CTPOP: {
Register SrcReg = MI.getOperand(1).getReg();
LLT Ty = MRI.getType(SrcReg);
unsigned Size = Ty.getSizeInBits();
unsigned Size = Ty.getScalarSizeInBits();
MachineIRBuilder &B = MIRBuilder;

// Count set bits in blocks of 2 bits. Default approach would be
Expand Down
Loading