authorgravatar for jacobly@ziglang.orgJacob Young <jacobly@ziglang.org> 2023-04-14 04:16:53-04:00
committergravatar for jacobly@ziglang.orgJacob Young <jacobly@ziglang.org> 2023-04-16 17:05:34-04:00
log08055f2942abe873283ec46f2656ecb932f915b3
tree1f1595316b7fe47ecf9426c5c06397db8fa1bdf4
parent7fad555e5e16e6cb71554981394387a0622093b0

x86_64: fix @clz direction

1 files changed, 2 insertions(+), 2 deletions(-)

src/arch/x86_64/CodeGen.zig+2-2
...@@ -3124,7 +3124,7 @@ fn airClz(self: *Self, inst: Air.Inst.Index) !void {...@@ -3124,7 +3124,7 @@ fn airClz(self: *Self, inst: Air.Inst.Index) !void {
3124 const imm_reg = try self.copyToTmpRegister(dst_ty, .{3124 const imm_reg = try self.copyToTmpRegister(dst_ty, .{
3125 .immediate = src_bits ^ (src_bits - 1),3125 .immediate = src_bits ^ (src_bits - 1),
3126 });3126 });
3127 try self.genBinOpMir(.bsf, src_ty, dst_mcv, mat_src_mcv);3127 try self.genBinOpMir(.bsr, src_ty, dst_mcv, mat_src_mcv);
31283128
3129 const cmov_abi_size = @max(@intCast(u32, dst_ty.abiSize(self.target.*)), 2);3129 const cmov_abi_size = @max(@intCast(u32, dst_ty.abiSize(self.target.*)), 2);
3130 try self.asmCmovccRegisterRegister(3130 try self.asmCmovccRegisterRegister(
...@@ -3138,7 +3138,7 @@ fn airClz(self: *Self, inst: Air.Inst.Index) !void {...@@ -3138,7 +3138,7 @@ fn airClz(self: *Self, inst: Air.Inst.Index) !void {
3138 const imm_reg = try self.copyToTmpRegister(dst_ty, .{3138 const imm_reg = try self.copyToTmpRegister(dst_ty, .{
3139 .immediate = @as(u64, math.maxInt(u64)) >> @intCast(u6, 64 - self.regBitSize(dst_ty)),3139 .immediate = @as(u64, math.maxInt(u64)) >> @intCast(u6, 64 - self.regBitSize(dst_ty)),
3140 });3140 });
3141 try self.genBinOpMir(.bsf, src_ty, dst_mcv, mat_src_mcv);3141 try self.genBinOpMir(.bsr, src_ty, dst_mcv, mat_src_mcv);
31423142
3143 const cmov_abi_size = @max(@intCast(u32, dst_ty.abiSize(self.target.*)), 2);3143 const cmov_abi_size = @max(@intCast(u32, dst_ty.abiSize(self.target.*)), 2);
3144 try self.asmCmovccRegisterRegister(3144 try self.asmCmovccRegisterRegister(